Updated on 2024/08/23

写真a

 
Masahiro Okumiya
 
Organization
Specially Appointed Faculty Specially Appointed Professor Okumiya Laboratory Specially Appointed Professor   
Degree
博士(工学) ( 名古屋大学 )
External link
Contact information
メールアドレス

Main research papers

  • Formation of Compositionally Graded Ni-P Deposits Containing SiC Particles by Jet Electroplating

    H. Takeuchi, Y. Tsunekawa, M. Okumiya,

    Mater. Trans. JIM   38 ( 1 )   43 - 48   1997.1.31

    Carbon content control in plasma carburizing using process parameter and probe methods

    M. Okumiya, Y. Tsunekawa, T. Matsumoto, K. Tanaka, T. Nagai

    Surface & Coating Technology   174-175   1171 - 1174   2003

    Surface Modification of Aluminum Using Ion Nitriding and Barrel Nitriding

    M. Okumiya, Y. Tsunekawa, H. Sugiyama, Y. Tanaka, N. Takano, M. Tomimoto

    Surface & Coating Technology   200   35 - 39   2005

    電子ビーム励起プラズマによるアルミニウム合金の表面窒化

    奥宮正洋,恒川好樹,馬場昭弘,田村賢

    熱処理   46 ( 2 )   72 - 78   2006.4.30

    A Novel Bonding Method of Pure Aluminum and SUS304 Stainless Steel Using Barrel Nitriding

    Jung Hyun Kong, Masahiro Okumiya, Yoshiki Tsunekawa, Ky Youl Yun, Sang Gweon Kim, Masashi Yoshida

    Metallurgical and Materials Transactions A   45 ( 10 )   4443 - 4453   2014

Education

  • Nagoya University

    - 1985.3

Research theme

  • 焼入油の蒸気膜段階長さが焼入後の鋼の特性に及ぼす影響【大学間連携等に関する共同研究】

    奥宮 正洋

    2021 - 2022

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    焼入油の蒸気膜段階長さが焼入後の鋼の表面硬さ,硬さプロファイルおよび熱処理変形に及ぼす影響を調査する.

    Outcome:

    2022
    焼入性の良いほど,試験片の肉厚が小さいほど蒸気膜段階長さの影響は少ない.炭素鋼については,試験片の肉厚が厚いもので,蒸気膜段階長さが硬さプロファイルに及ぼす影響が観察された.

  • Effect of nitride layer thickness and nitrogen concentration on aluminum surface nitridation by powder activated barrel method on nitride layer purity

    奥宮 正洋

    2017

  • Surface hardening method of steel by plasma N-quench

    奥宮 正洋

    2017

  • Morphological control of formation layer in nitriding quenching

    奥宮 正洋

    2017

Papers

  • Surface Nitriding of Aluminum Using Barrel and Its Applications Reviewed

    Masahiro Okumiyia, Koichiro Nambu, Masashi Yoshid, Sang-Gweon Kim & Jung-Hyun Kong

    BHM Berg- und Hüttenmännische Monatshefte   168 ( 3 )   114 - 119   2023.3

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer  

  • Airflow Analysis Inside and Outside the Nozzle in Shot Peening Process Reviewed

    Koichiro Nambu, Yusuke Saeki, Masahiro Okumiya

    Lecture Notes in Mechanical Engineering   285 - 291   2024.3

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Effect of Nozzle Diameter on Particle Velocity in Fine Particle Peening Processes Reviewed

    Koichiro Nambu, Yusuke Saeki, Masahiro Okumiya

    NETSUSHORI Special Issue, 28th IFHTSE 2023 Congress   Special Issue   2024.3

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Evaluation of Fatigue Strength Characteristics of Al–Mg Oxide Dispersed Aluminum Composite Reviewed

    Yuki Ueno, Koichiro Nambu, Masahiro Okumiya

    Lecture Notes in Mechanical Engineering   489 - 494   2021.1 (   ISSN:2195-4356   eISSN:2195-4364 )

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    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer Singapore  

    DOI: 10.1007/978-981-15-9893-7_35

  • Control of hydrophobic and hydrophilic characteristics of metallic materials using shot blasting Reviewed

    Fumiya SANO 材料プロセス*, Koichiro Nambu, Masahiro Okumiya, Yusuke UCHIUMI **

    International Journal of Abrasive Technology   2020.9

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    Publishing type:Research paper (scientific journal)   Publisher:Inderscience Publishers (IEL)  

  • Influence of Nitriding and Multiple Peening on Surface Characteristic of Tool Steel AISI D2 Reviewed

    Koichiro Nambu, 西尾将裕 材料プロセス*, Masahiro Okumiya, 宮本潤示 大同大学*

    HTM Journal of Heat Treatment and Materials   75 ( 2 )   97 - 104   2020.4

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    Publishing type:Research paper (scientific journal)   Publisher:Carl Hanser Verlag  

  • Influence of Nitriding and Multiple Peening on Surface Characteristic of Tool Steel AISI D2 Reviewed

    Koichiro Nambu, Masahiro Okumiya

    HTM Journal of Heat Treatment and Materials   75 ( 2 )   97 - 104   2020.4

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    Authorship:Last author   Publishing type:Research paper (scientific journal)  

  • Control of Hydrophobic and Hydrophilic of Metallic Materials Using Surface Texturing Reviewed

    Fumiya Sano*, Koichiro Nambu, Yusuke Uchiumi **, Masahiro Okumiya

    Proceedings of The 22nd International Symposium on Advances in Abrasive Technology   2019.12

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    Authorship:Last author   Publishing type:Research paper (international conference proceedings)  

  • Influence of wetblast treatment on fatigue strength of magnesium alloy AZ31 Reviewed

    Koichiro Nambu, Kenta Takashima Material Processing Lab*, Masahiro Okumiya

    Lecture note in Mechanical Engineering   2019.9

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  • Verification on Possibility of Nitrogen Diffusion into Steel by High Temperature N-Quench Reviewed

    Atsushi Nakamura Material Processing Lab*, Koichiro Nambu, Masahiro Okumiya

    Defect and Diffusion Forum   395   124 - 132   2019.6

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    Authorship:Last author   Publishing type:Research paper (scientific journal)   Publisher:Scientific.Net  

  • Effect of Barrel Nitriding on Friction and Wear Characteristics of Aluminum Alloy Reviewed

    Koichiro Nambu, Masahiro Okumiya, Kazuki Sayo Material Processing Lab*

    Proceedings of the ECHT 2019 – HEAT TREATMENT & SURFACE ENGINEERING FOR AUTOMOTIVE   2019.6

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    Publishing type:Research paper (international conference proceedings)  

  • Influence of processing conditions on deposit layer formation by barrel nitriding treatment on aluminum alloy Reviewed

    Koichiro Nambu, Masahiro Okumiya, Kazuki Sayo Material Peocessing Lab*

    Proceedings of the SurfCoat Korea 2019 International Conference   2019.4

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  • Low distortion processes by controlled water mist quenching Reviewed

    Noguchi Mamoru 材料プロセス*, Koichiro Nambu, Hirai Hirokazu IHI machinerly and Furnance*, Katsumata Kazuhiko IHI machinerly and Furnance*, Masahiro Okumiya

    Proceedings of International Conference on Quenching and Distortion Engineering 2018   2018.11

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    Authorship:Last author   Publishing type:Research paper (international conference proceedings)  

  • VERIFICATION ON POSSIBILITY OF NITROGEN INFILTRATION INTO STEEL BY N-QUENCH Reviewed

    Nakamura Atsushi 材料プロセス*, Koichiro Nambu, Masahiro Okumiya

    Proceedings of Vacuum Heat Treatment and Heat Treatment of Tools 2018    2018.11

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  • Influence of soft particle peening treatment on fatigue strength of aluminum alloy a5052 Reviewed

    Koichiro Nambu, Masahiro Okumiya

    Lecture note in Mechanical Engineering   2018.9

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    Authorship:Last author   Publishing type:Research paper (scientific journal)   Publisher:Springer  

  • High Temperature Plasma Nitriding and Quench on Low Carbon Steel. Reviewed

    Masahiro Okumiya, Koichiro Nambu, shota matsuda*, Kojiro Inaba*, Makoto Fujita*, Yoshiki Tsunekawa*, Sang Gweon Kim*

    Proceedings of Europian Conference on Heat treatmen   2018.4

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  • Effect obu Process Parameter on Nitriding obu Aluminum Powder Using Barrel Nitriding Reviewed

    Masahiro Okumiya, Koichiro Nambu

    Proceedings of LIGHTMAT   2017.11

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    Authorship:Lead author   Publishing type:Research paper (international conference proceedings)  

  • Surface modification of aluminum powder using barrel nitriding Reviewed

    Masahiro Okumiya, Koichiro Nambu

    24th IFHTSE CONGRESS 2017 European Conference on Heat Treatment and Surface Engineering A3TS CONGRESS   2017.6

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    Authorship:Lead author   Publishing type:Research paper (international conference proceedings)   Publisher:IFHTSE  

  • Bonding of Dissimilar Metal by Spot Welding Reviewed

    Masanari Watanabe 材料プロセス*, Yoshiki Tsunekawa, Masahiro Okumiya

    Proc. of the 13th Asian Foundry Congress (AFC-13)   ( Session 4 )   249 - 254   2015.10

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  • In-process Low Temperature Carburizing of Hybrid Carbon Coated Die-cast Mold Reviewed

    Y.Takemoto 材料プロセス*, Yoshiki Tsunekawa, Masahiro Okumiya, E.Tabata TOYOTA MOTOR CORP.*, M.Kobayashi TOYOTA MOTOR CORP.*, Y.Furukawa TOYOTA MOTOR CORP.*

    Proc. of the 13th Asian Foundry Congress (AFC-13)   ( Session 4 )   277 - 281   2015.10

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    Publishing type:Research paper (international conference proceedings)  

  • Relation between Heat Source and Electrode Force of Dissimilar Metal Welding Reviewed

    CHIHIRO MATSUDA Gifu University*, KYYOUL YUN Gifu University*, J. H. Kong 材料プロセス*, SHUNJI YANASE Gifu University*, Masahiro Okumiya, IBRAHIMBIN ISHAK Gifu University*, TOSHIFUMI KAKIUCHI Gifu University*, YOSHIHIKO UEMATSU Gifu University*

    International Journal of Metallurgical & Materials Science and Engineering   5 ( 2 )   1 - 6   2015.4 (   ISSN:2278-2524 )

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    Publishing type:Research paper (scientific journal)  

  • A Novel Bonding Method of Pure Aluminum and SUS304 Stainless Steel Using Barrel Nitriding Reviewed

    チョンヒョン コン, Masahiro Okumiya, Yoshiki Tsunekawa, K.Y.Yun*, S.G.Kim*, M.Yoshida*

    METALLURGICAL AND MATERIALS TRANSACTIONS A   45A   4443 - 4453   2014.9

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    Publishing type:Research paper (scientific journal)  

  • Semisolid Casting of Hypereutectic Al-Si-Cu Alloy with Sono-solidified Slurry Reviewed

    Yoshiki Tsunekawa, S.Suetsugu*, Masahiro Okumiya, Y.Furukawa*, N.Nishikawa*, Y.Genma*

    Key Engineering Materials   622-623   804 - 810   2014.8

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    Publishing type:Research paper (international conference proceedings)  

  • Improvement in mechanical properties of hypereutectic Al-Si-Cu alloys through sono solidified slurry Reviewed

    Yoshiki Tsunekawa, Shinpei Suetsugu Toyota Motor Corporation*, Masahiro Okumiya, Naoki Nishikawa Toyota Motor Corporation*, Yoshikazu Genma Toyota Motor Corporation*

    China Foundry Special Issue   11 ( 4 )   396 - 401   2014.7 (   ISSN:1672-6421 )

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    Publishing type:Research paper (scientific journal)   Publisher:Foundry Journal Agency  

  • Semisolid Casting of Hypereutectic Al-Si-Cu Alloy with Sono-solidified Slurry Reviewed

    Yoshiki Tsunekawa, Shinpei Suetsugu Toyota Motor co.*, Masahiro Okumiya, Yuichi Furukawa Toyota Motor co.*, Naoki Nishikawa Toyota Motor co.*, Yoshikazu Genma Toyota Motor co.*

    Key Engineering Materials   622-623   804 - 810   2014

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    Publishing type:Research paper (scientific journal)   Publisher:Trans Tech Publications  

  • Strengthening of Hypoeutectic Al-Cu Alloys by Sono-Solidification Reviewed

    Yoshinori Matsubara 材料プロセス*, Yoshiki Tsunekawa, Masahiro Okumiya, Naoki Nishikawa Toyota Motor Corporation*, Yoshikazu Genma Toyota Motor Corporation*

    12th Asian Founday Congress   2013.12

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    Publishing type:Research paper (international conference proceedings)  

  • AlN and Intermetallic Compound Layers Formed between Aluminum and Austenitic Stainless Steel using Barrel Nitriding Reviewed

    チョンヒョン コン, Masahiro Okumiya, Yoshiki Tsunekawa, S.G.Kim*, M.Yoshida*

    Progress in Organic Coatings   76   1841 - 1845   2013.6

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  • Surface Modification of SCM420 Steel by Plasma Electrolytic Treatment Reviewed

    チョンヒョン コン, Masahiro Okumiya, Yoshiki Tsunekawa, T.Takeda 元材料プロセス修士学生*, K. Y. Yun 元電磁システム*, M.Yoshida 静岡理工科大学*, S.G.Kim*

    Surface and Coatings Technology, Vol. (), .   232   275 - 282   2013.5

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    Publishing type:Research paper (scientific journal)  

  • Functionally Graded Thixocast Pipes with Sono-solidified Hypereutectic Al-Si Alloy Billets Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, Y. Miyamoto 2010年度修了,現トヨタ自動車*

    International Foundry Research   65 ( 1 )   12 - 17   2013.3

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  • Intermetallic Compound Coatings Formed by Reactive Suspension Plasma Spraying with Elemental Powders Reviewed

    Yoshiki Tsunekawa, Kyohei Nakamoto*, Masahiro Okumiya

    Proc Surface Modification Technologies 26   21 - 33   2013.3

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    Authorship:Last author   Publishing type:Research paper (international conference proceedings)  

  • Study of friction properties of the sintered steel parts treated by chromizing Reviewed

    Y. J. Park KITECK*, S. G. Kim KITECK*, J. H. Lee KITECK*, J. H. Kong*, Masahiro Okumiya

    Proceedings of 20th Congress of International Federation for Heat Treatment and Surface Engineering   390 - 391   2012.10

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  • The study of nitriding rate in mold steel by nitrogen species under novel nitriding process Reviewed

    S. G. Kim KITECK*, K. H. Yeo KITECK*, J. H. Kong*, Masahiro Okumiya

    Proceedings of 20th Congress of International Federation for Heat Treatment and Surface Engineering   347 - 350   2012.10

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  • The Study about Surface Modification of Steel by Water Plasma Reviewed

    チョンヒョン コン, T.Takada*, Masahiro Okumiya, Yoshiki Tsunekawa, M.Yoshida*, S.G.Kim*

    Proc. 13th International Conference on Plasma Surface Engineering (CD)   2012.9

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  • The Study about Surface Modification of Steel by Water plasma Reviewed

    J. H. Kong*, T. Takeda 2012年度修了、現デンソー*, Masahiro Okumiya, Y. Tsunekawa*, M. Yoshida 静岡理工科大学*, S. G. Kim TITECK*

    Proceedings of 13th International Conference on Plasma Surface Engineering   2012.9

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  • Thixoforming with Hypoeutectic Al-7wt%Si Alloy Billets Containing Different Amounts of Impurity Iron Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, Takahiro Motomura*

    Proc Metal Forming 2012   759 - 762   2012.9

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    Publishing type:Research paper (international conference proceedings)   Publisher:Wiley  

  • Effect of Retained Hydrocarbon on Carbon Concentration of Steel in Direct Carburizing Reviewed

    Masahiro Okumiya, チョンヒョン コン, H.Fujii*, M.Yoshida*, Yoshiki Tsunekawa, N.Iwamoto*

    Proc. AES-ATEMA’ 2012 International Conference   315 - 320   2012.8

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  • Thixoforming with Hypoeutectic Al-7wt%Si Alloy Billets Containing Different Amounts of Impurity Iron Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, Takahiro Motomura*

    Steelresearch international   83 ( 8 )   759 - 762   2012.8

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    Publishing type:Research paper (scientific journal)   Publisher:WILEY-VCH Verlag GmbH & Co. KGaA  

  • Effect of Retained Hydrocarbon on Carbon Concentration of Steel in Direct Carburizing Reviewed

    Masahiro Okumiya, J. H. Kong*, H. Fujii 2010年度修了、現豊田自動織機*, M. Yoshida 静岡理工科大学*, Yoshiki Tsunekawa

    Proceedings of AES-ATEMA'2012 International Conference   315 - 320   2012.8

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  • Effect of Treating Temperature and Gases Composition on Nitrogen Concentration of Steel in Vacuum Nitriding Reviewed

    Masahiro Okumiya, チョンヒョン コン, Yoshiki Tsunekawa, R.Terasaki*

    Proc. Coating Science International 2012   223 - 225   2012.6

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  • The Study of AIN and Intermetallic Compound layers between Aluminum and Austenitic Stainless Steel Using Barrel Nitriding Reviewed

    チョンヒョン コン, Masahiro Okumiya, Yoshiki Tsunekawa, S.G.Kim*, M.Yoshida*

    Proc. Coating Science International 2012   210 - 213   2012.6

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  • Effects of treating temperature and gases composition on nitrogen concentration of steel in vacuum nitriding Reviewed

    Masahiro Okumiya, J. H. Kong*, Yoshiki Tsunekawa, R. Terasaki 2007年度卒業,現デンソー*

    Proceedings of Coating Science International 2012   2012.6

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  • 真空浸窒における浸入窒素量にプロセスパラメータが及ぼす影響および浸入窒素量制御 Reviewed

    奥宮 正洋, 恒川 好樹, チョンヒョン コン, 吉田昌史 静岡理工科大学*, 寺崎龍士 2006年度卒業,現デンソー*

    熱処理   52 ( 3 )   117 - 122   2012.6

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    Authorship:Lead author   Publishing type:Research paper (scientific journal)   Publisher:熱処理技術協会  

  • The Study of AlN and Intermetallic Compound layers between Aluminum and Austenitic Stainless Steel Using Barrel Nitriding Reviewed

    J. H. Kong*, Masahiro Okumiya, Yoshiki Tsunekawa, S. G. Kim KITECH*, M. Yoshida 静岡理工科大学*

    Proceedings of Coating Science International 2012   210 - 213   2012.6

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    Publishing type:Research paper (international conference proceedings)  

  • Centrifugal Thixocasting with Ultrasonically Melt-treated Hypereutectic Al-Si Alloy Billets Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, Yusuke Miyamoto*

    Proc 70th World Foundry Congress (WFC2012)   2012.4

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  • 超音波溶湯処理した過共晶Al-Si合金ビレットを用いる半溶融遠心鋳造 Reviewed

    宮本侑典 豊田工業大学大学院(現、トヨタ自動車㈱)*, 恒川 好樹, 奥宮 正洋

    日本鋳造工学会誌   84 ( 3 )   137 - 142   2012.2

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    Authorship:Last author   Publishing type:Research paper (scientific journal)   Publisher:公益社団法人日本鋳造工学会  

  • 超音波溶湯処理による半溶融鋳造Al-Si-Fe系合金の組織改良と機械的性質 Reviewed

    恒川 好樹, 奥宮 正洋, 本村隆寛 豊田工業大学大学院(現、本田技研㈱)*, 岩澤 秀 静岡県工業技術センター*, 高橋正詞 浅沼技研㈱*, 上久保佳則 浅沼技研㈱*, 杉浦泰夫 浅沼技研㈱*

    鋳造工学   84 ( 2 )   75 - 80   2012.1

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    Publishing type:Research paper (scientific journal)   Publisher:公益社団法人日本鋳造工学会  

  • Thixoforming with Hypoeutectic Al-7wt%Si Alloy Billets Containing Different Amounts of Impurity Iron Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, Takahiro Motomura*

    Proc 14th International Conference on Metal Forming 2012   759 - 762   2012

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  • Semisolid casting with ultrasonically melt-treated billets of Al-7mass%Si alloys Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, Takahiro Motomura*

    China Foundry   9 ( 1 )   78 - 83   2012

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    Publishing type:Research paper (scientific journal)   Publisher:Foundry Institution of China Mechanical Engineering Society  

  • Surface Nitriding of Al-Mg Alloys Using a Rotary Barrel Tank Reviewed

    T.Zhou*, M.Yoshida*, Masahiro Okumiya, N.Utsumi*, Yoshiki Tsunekawa

    Key Engineering Materials   523-524   1080 - 1085   2012

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  • Semisolid casting with ultrasonically melt-treated billets of Al-7mass%Si alloys Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, Takahiro Motomura 2007年度修士課程修了*

    Proceedings of the 11th Asian Foundry Congress   30 - 35   2011.11

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    Publishing type:Research paper (international conference proceedings)   Publisher:Foundry Institution of Chinese Mechanical Engineering Society  

  • Crystallization of Hetero-structure in Hypereutectic Al-Si Alloy through Sono-solidification Reviewed

    Shinpei Suetsugu M1*, Yoshiki Tsunekawa, Masahiro Okumiya

    Proceedings of the 4th Korea-Japan Conference for Young Foundry Engineers,Nov.10-11,2011,Gyeongju,Korea   127 - 128   2011.11

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  • The Study on the Phase Transformation of AISI D2 Tool Steel after High Temperature Gas Nitriding and Tempering Reviewed

    奥宮 正洋, チョンヒョン コン, 恒川 好樹

    2011.10

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  • 反応性サスペンション溶射によるNiAl皮膜の形成 Reviewed

    仲本恭平 2010年度修士課程修了*, 恒川 好樹, 奥宮 正洋

    日本溶射学会誌   48 ( 4 )   168 - 173   2011.10

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  • Effect of Jet Electrolytic Solution on Formation of Photocatalytic Titania Film Reviewed

    Masahiro Okumiya, Yoshiki Tsunekawa

    AES-ATEMA International Conference Series - Advances and Trends in Engineering Materials and their Applications   2011.7

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  • 超音波照射による連続鋳造マグネシウム合金ビレットの結晶粒微細化 Reviewed

    佐々木 悠 現,トヨタ自動車、2008年修了*, 恒川 好樹, 奥宮 正洋, 清水和紀 三協マテリアル*

    日本鋳造工学会誌   83 ( 2 )   93 - 98   2011

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  • 超音波照射による過共晶Al-Si,合金の初晶けい素微細化 Reviewed

    福井雄太 現、三菱重工業、2010年修了*, 恒川 好樹, 奥宮 正洋

    日本鋳造工学会誌   82 ( 10 )   618 - 624   2010

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  • Nucleation with Collapse of Acoustic Cavitation in Molten Al-Si Alloys Reviewed

    Yuta Fukui, Yoshiki Tsunekawa, Masahiro Okumiya

    THERMEC 2009 SUPPLEMENT   89-91   190 - 195   2010 (   ISSN:1022-6680 )

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    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:TRANS TECH PUBLICATIONS LTD  

    Ultrasonic irradiation during the solidification of molten metals has an effect on grain refinement. However, the mechanism of grain refinement by ultrasonic vibration has not been fully understood yet, so that there exist difficulties to apply the ultrasonic grain refinement to industrial casting processes. In the present study, we propose the mechanism of ultrasonic grain refinement: the nucleation is based on the extremely high pressure generated by the collapse of acoustic cavitation in molten Al-Si alloys. The effect of ultrasonic irradiation into molten Al-Si alloy on the microstructure was firstly studied, that is, molten Al-12.6wt%Si alloy was rapidly cooled down from just above the eutectic temperature after the ultrasonic irradiation. The detailed microstructure observation exhibits that ultrasonic irradiation above the eutectic temperature causes crystalline alpha-Al and silicon to nucleate. Through the measurement of silicon content in alpha-Al nodules solidified with ultrasonic irradiation, the silicon content is higher than that in non-irradiated alpha-Al nodules. It is known that the collapse of acoustic cavitation generates extremely high pressure. At the highly pressurized sites, the eutectic temperature rises and the crystallized alpha-Al nodules contain higher amount of silicon compared with those solidified at ambient pressure. According to the fact that the alpha-Al nodules crystallized above the eutectic temperature contain higher amount of silicon, the irradiated microstructure of alpha-Al nodules is developed at the highly pressurized sites, that is, the collapse of acoustic cavitation induces nucleation and causes grain refinement.

    DOI: 10.4028/www.scientific.net/AMR.89-91.190

  • Effect of Ultrasonic Melt-Treatment on the Eutectic Silicon and Iron Intermetallic Phases in Al-Si cast Alloys Reviewed

    ワリド カリファ, Yoshiki Tsunekawa, Masahiro Okumiya

    Materials Science Forum   638-642   431 - 436   2010

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  • Appearance of Non-Equilibrium α-Aluminum Grains in Hypereutectic Al-Si Alloy through Sono-Solidification. Reviewed

    Yoshiki Tsunekawa, K.Taga*, Y.Fukui*, Masahiro Okumiya

    Materials Science Forum   638-642   362 - 367   2010

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  • In Situ Particle Behavior of Cast Iron Powder by Suspension Plasma Spraying Reviewed

    Cagri Tekmen 現、ELMARCO、元PD研究員*, Kazuya Iwata 現、ヤマハ発動機、2008年修了*, Yoshiki Tsunekawa, Masahiro Okumiya

    Journal of Thermal Spray Technology   19 ( 1-2 )   255 - 261   2010

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  • Sono-Solidification in Hypereutectic Al-Si Alloy Reviewed

    Yoshiki Tsunekawa, Kanako Taga 現、資生堂、2008年修了*, Yuta Fukui 現、三菱重工業、2010年修了*, Masahiro Okumiya

    Proceedings of the 12th International Conference on Aluminum Alloys   631 - 637   2010

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  • Crystallization of Non-equilibrium α-Aluminum and Primary Silicon with Acoustic Cavitation in Hypereutectic Al-Si Alloy Reviewed

    Yoshiki Tsunekawa, Yuta Fukui 現、三菱重工業、2010年修了*, Kanako Taga 現、資生堂、2008年修了*, Masahiro Okumiya

    Proceedings of 69th World Foundry Congress   127 - 131   2010

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  • Ultrasonic Grain Refining Effects in A356 Al-Si Cast Alloy Reviewed

    ワリド カリファ, Yoshiki Tsunekawa, Masahiro Okumiya

    Transactions of the American Foundry Society   118   91 - 98   2010

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  • シュラウド付き大気プラズマ溶射によるTi2AIN生成複合被膜の形成 Reviewed

    仲本恭平 現、三菱重工業、2011年修了*, 恒川 好樹, 奥宮 正洋

    日本溶射学会誌   47 ( 4 )   166 - 171   2010

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  • Effect of ultrasonic treatment on the Fe-intermetallic phases in ADC12 die cast alloy Reviewed

    Waleed Khalifa 現、Cairo Univ.,元PD研究員*, Yoshiki Tsunekawa, Masahiro Okumiya

    Journal of Materials Processing Technology   210   2178 - 2187   2010

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  • A Novel Method for The Production of AlN Film with High Adhesion on Al Substrate Reviewed

    Masashi Yoshida*, Masahiro Okumiya, Ryuta Ichiki*, C.Tekmen*, ワリド カリファ, Yoshiki Tsunekawa, 原 民夫

    Journal of Plasma and Fusion Research SERIES   8   1447 - 1450   2009

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  • Surface Modification of Aluminum Using a Combined Technique of Barrel Nitriding and Plasma Nitriding Reviewed

    Masahiro Okumiya, Masashi Yoshida, Ryuta Ichiki, Cagri Tekmen, Waleed Khalifa, Yoshiki Tsunekawa, Kazushi Tanaka

    PLASMA PROCESSES AND POLYMERS   6   287 - 290   2009 (   ISSN:1612-8850   eISSN:1612-8869 )

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    In this study, a new nitriding process is proposed to produce the aluminum nitride on the aluminum surface. A process of combined barrel and plasma nitriding techniques was used. By using the barrel nitriding process, an aluminum nitride layer with high thickness can be formed within a matter of hours, and the surface hardness can be improved by using the plasma nitriding. It is suggested that a combined technique of the barrel nitriding and the plasma nitriding is one of the most promising surface treatments for the aluminum.

    DOI: 10.1002/ppap.200930705

  • Surface Modification of Aluminum Alloy Using a Barrel Nitriding Reviewed

    Masahiro Okumiya, M.Yoshida*, Yoshiki Tsunekawa, C.Tekmen*, ワリド カリファ, M.Tajima*

    Proceedings of 4th AES-ATEMA'2009 International Conference   189 - 193   2009

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  • Anti-Oxidation Effect of Liquid Hydrocarbon Injection in Atmospheric Cast Iron Plasma Spraying with Shroud. Reviewed

    Yoshiki Tsunekawa, C.Tekmen*, Kazuya Iwata*, Masahiro Okumiya

    Proceedingsthe 4th Asian Thermal Spray Conference(ATSC2009)   202 - 206   2009

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  • Controlling Graphite Content in Plasma Sprayed Cast Iron Coatings via In-flight Particle Diagnostic. Reviewed

    C.Tekmen*, K.Iwata*, Yoshiki Tsunekawa, Masahiro Okumiya

    Journal of Materials Processing Technology(Elsevier)   209   5417 - 5422   2009

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  • 超音波キャビテーションによるAl-18mass%Si合金での非平衡α-Al固溶体の晶出 Reviewed

    田賀佳奈子 現、資生堂、2008年修了*, 福井雄太 現、三菱重工業、2010年修了*, 恒川 好樹, 奥宮 正洋

    日本鋳造工学会誌   81 ( 10 )   469 - 474   2009

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  • In-situ Particle Behavior of Cast Iron Powder by Suspension Plasma Spraying Reviewed

    C.Tekmen*, K.Iwata 2008年度修士課程修了*, Yoshiki Tsunekawa, Masahiro Okumiya

    Proceedings of the International Thermal Spray Conference   187 - 192   2009

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  • Influence of methane and carbon dioxide on in-flight particle behavior of cast iron powder by atmospheric plasma spraying. Reviewed

    C.Tekmen*, K.Iwata*, Yoshiki Tsunekawa, Masahiro Okumiya

    Materials Letters   63   2439 - 2441   2009

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  • In-situ TiB2-Al2O3 formed composite coatings by atmospheric plasma spraying: Influence of process parameters and in-flight particle characteristics. Reviewed

    C.Tekmen*, Yoshiki Tsunekawa, Masahiro Okumiya

    Surface & Coatings Technology   203   1649 - 1655   2009

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  • Novel Surface Heat Treatment that Effectively Uses Nitrogen. Reviewed

    Masahiro Okumiya, Kojiro Inaba Yuki Induction Treatment*

    Proceedings of 4th Asian Conference on Heat Treatment and Surface Engineering   30 - 34   2009

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  • Effect of Ultrasonic Melt Treatment on the Microstructure of A356Aluminium Cast Alloys Reviewed

    ワリド カリファ, Yoshiki Tsunekawa, Masahiro Okumiya

    Proceedings of 10th Asian Foundry Congress   2008

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  • Effect of ultrasonic melt treatment on microstructure of A356 aluminium cast alloys Reviewed

    ワリド カリファ, Yoshiki Tsunekawa, Masahiro Okumiya

    International Journal of Cast Metal Research   21 ( 1-4 )   129 - 134   2008

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  • Graphite Structure in Coatings by Plasma Spraying with Iron Powder and Suspension. Reviewed

    Kazuya Iwata M2*, C.Tekmen*, Yoshiki Tsunekawa, Masahiro Okumiya

    Proceedings of 3rd Asian Thermal Spray Conference(ATSC2008), CDProceedings 3pages   2008

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  • Effect of plasma spray parameters on in-flight particle characteristics and in-situalumina formation. Reviewed

    C.Tekmen*, Yoshiki Tsunekawa, Masahiro Okumiya

    Surface & Coatings Technology   203   223 - 228   2008

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  • Hot-Dip Coating of Lead-free Aluminum on Steel Substrates with Ultrasonic Vibration Reviewed

    Yoshiki Tsunekawa, S. Tamura*, Masahiro Okumiya, N. Ishihara*

    Journal of Materials science and technology   24 ( 1 )   41 - 44   2008

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  • 高純度アルミニウム単結晶のナノインデンテーションにおける結晶面と強度・変形特性の関係 Reviewed

    吉田昌史*, 李木経孝 広島国際学院大学*, 紀 隆雄 広島国際学院大学*, 奥宮 正洋, 恒川 好樹

    日本金属学会誌   73 ( 2 )   95 - 102   2008

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  • Reaction Mechanism Analysis for Endothermic Gas Generator Reviewed

    Y. Shimokata 修士2年*, Masahiro Okumiya, M. Yoshida*, Yoshiki Tsunekawa, K. Nakano TOHO GAS CO. LTD.*

    International Gas Union Research conference 2008   2008

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  • Utilization of Natural Gas in Vacuum Carburizing Reviewed

    Masahiro Okumiya, Masashi Yoshida*, Yoshiki Tsunekawa, Hirotsugu Yamamoto 修士2004年修了*, Kazuya Orita w学部2005年卒*, Satoshi Hagi Toho Gas co. Ltd.*, Yoshito Umeda Toho Gas co. Ltd.*

    International Gas Union Research conference 2008   2008

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  • Alumina Formation and Flying Droplet Diagnostic in Reactive Plasma Spraying Reviewed

    C.Tekmen*, Masashi Yamazaki*, Yoshiki Tsunekawa, Masahiro Okumiya

    Surface Modification Technologies XXI,   439 - 447   2008

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  • Increase in graphite carbon in plasma-sprayed cast iron coatings based on flying droplet diagnostic. Reviewed

    Yoshiki Tsunekawa, T.Kozaki 2006年度修士課程修了*, K.Iwata 修士課程2年*, Masahiro Okumiya

    Proceedings of International Thermal Spray Conference(ITSC2008)   25 - 29   2008

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  • Corrosion behavior of in-situ Al2O3 formed composite coationg by DC plasma spraying Reviewed

    B.Dikici Ercis-Van/TR*, C.Tekmen*, M.Gavgali Erzurun/TR*, Yoshiki Tsunekawa, Masahiro Okumiya

    Proceedings of International Thermal Spray Conference(ITSC2008)   1492 - 1496   2008

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  • In-situ TiB2 and Al2O3 Formation by DC Plasma Sprayin Reviewed

    C.Tekmen*, Yoshiki Tsunekawa, Masahiro Okumiya

    Surface & Coatings Technology   202   4170 - 4175   2008

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  • In-situ Plasma Spraying:Alumina Formation and In-Flight Particle Diagnostic Reviewed

    C.Tekmen*, Masashi Yamazaki*, Yoshiki Tsunekawa, Masahiro Okumiya

    Surface & Coatings Technology   202   4163 - 4169   2008

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  • Ultrasonic cavivtation treatment for soldering on Zr-based bulk metallic glass Reviewed

    S.Tamura 水産大学校*, Yoshiki Tsunekawa, Masahiro Okumiya, M.Hatakeyama 東北大学*

    Journal of Materials Processing Technology(Elsevier)   206   322 - 327   2008

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  • Effect of Reheating to the Semisolid State of the Microstructure of the A356 Aluminum Alloy Produced by Ultrasonic Melt - Treatment Reviewed

    ワリド カリファ, Yoshiki Tsunekawa, Masahiro Okumiya

    Solid State Phenomena   141-143   499 - 504   2008

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  • 高純度アルミニウムのナノインデンテーション試験における自然酸化膜の影響 Reviewed

    吉田昌史, 李木経孝, 紀 隆雄, 奥宮正洋, 恒川好樹

    74 ( 3 )   287 - 291   2008

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    DOI: 10.2493/jjspe.74.287

  • 超音波振動を用いた鋼基材へのアルミニウム合金の溶融被覆 Reviewed

    田村賢 東京大学大学院*, 石原直樹 2005年3月終了/現豊田自動織機*, 恒川 好樹, 奥宮 正洋

    日本鋳造工学会誌   79 ( 9 )   529 - 536   2007.9

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  • Change in Graphite Carbon Structure of Cast Iron Coating through Different Spray Flame Situation Reviewed

    Yoshiki Tsunekawa, T. Ueno 2005年修士課程修了*, T. Kozaki 2007年修士課程修了・現トヨタ自動車*, Masahiro Okumiya, I. Ozudemir Presently, Dokuz Eylul University,Turkey*

    Thermal Spray 2007: Global Coating Solutions (Proceedings of International Thermal Spray Conference)   843 - 848   2007

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  • 超音波照射を利用するアルミニウム合金半凝固スラリーの作製 Reviewed

    木下禎仁 大銑産業*, 恒川 好樹, 奥宮 正洋

    日本鋳造工学会誌   79 ( 2 )   95 - 100   2007

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  • 電子ビーム励起プラズマによるアルミニウム合金の表面窒化 Reviewed

    奥宮 正洋, 恒川 好樹, 馬場昭弘 本学卒業生 現在:旭硝子㈱*, 田村 賢*

    熱処理   46 ( 2 )   72 - 78   2006.4

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  • Change in Graphite Structure of Cast Iron Coatings through the Process of Plasma Spraying Reviewed

    Yoshiki Tsunekawa, I.Ozdemir*, T.Ueno 平成16年度修士課程修了・現トヨタ自動車*, Masahiro Okumiya

    Proceedings pf the 18'th International Conference on Surface Modification Technologies   2006

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  • Plasma Sprayed Cast Iron Coatings Containing Solid Lubricant Graphite and h-BN Structure Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya

    Journal of Thermal Spray Technology   2006

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  • Reactively Thermal Sprayed Composite Coatings with Different Particle Temperature and Velocity Reviewed

    Yoshiki Tsunekawa, I.Hamanaka 平成14年度修士課程修了・現トヨタ自動車(株)*, M.Hirose 平成15年度学部卒業・現トヨタ自動車(株)*, Masahiro Okumiya, I.Ozdemir PD研究員・現Dokuz Eylul University, Turkey*

    2006 International Thermal Spray Conference(ITSC2006),ASM International, German Welding Society(DVS),CD Proceedings   2006

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  • Control of Graphite Carbon in Plasma-sprayed Cast Iron Coatings through Flying Droplet Diagnostic Reviewed

    T. Kozaki 修士課程2年*, 恒川 好樹, 奥宮 正洋

    2006

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  • Microstructure and friction properties of plasma sprayed Al-Si alloyed cast iron coatings Reviewed

    M.F Morks CMRDI*, Yoshiki Tsunekawa, Masahiro Okumiya

    Materials Chemistry and Physics   96   170 - 175   2006

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  • Effect of Ultrasonic Cavitation on Force Acting on Solid Object in Water Reviewed

    S. Tamura*, Yoshiki Tsunekawa, Masahiro Okumiya

    Japanese Journal of Applied Physics.Part 1   45 ( 4A )   2842 - 2844   2006

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  • Graphitization Potential of Cast Iron Powder in Atmospheric Plasma Spray Conditions Reviewed

    Ismail Ozdemir 現,Bartin University, Turkey, 元PD研究員*, Yoshiki Tsunekawa, Masahiro Okumiya

    Materials Transactions   47 ( 7 )   1710 - 1716   2006

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  • Study on nitriding mechanism for aluminum using barrel nitriding Reviewed

    Masahiro Okumiya, Hiroshi Ikeda, Yoshiki Tsunekawa

    HEAT TREATMENT OF MATERIALS   118   137 - 142   2006 (   ISSN:1012-0394 )

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    In a previous study, an aluminum nitride (AlN) layer was formed below the melting point of aluminum (Al) on the surface of an Al substrate (JIS-A1050) in a barrel with alumina/aluminum-magnesium alloy powder which activates the substrate in the nitrogen atmosphere. In this study, the mechanism of formation of AIN in the barrel was examined. AN formation requires an incubation period. During the incubation period, a white region on the surface is observed by the optical microscopy. The Electron Probe Micro Analyzer (EPMA) show that this region contains magnesium (Mg). It seems that Mg penetrates and diffuses from the filled Al-Mg powder in the barrel. After that, the nitride is partially generated at the surface of the Al substrate, and it grows with the substrate surface. The AlN layer thickness increases proportionally with the square root of time, and it has good adhesion.

    DOI: 10.4028/www.scientific.net/SSP.118.137

  • In situ Formation of Al-Si-Mg based composite coating by different reactive thermal spray processes Reviewed

    I.Ozdemir*, I.Hamanaka '03 修了*, M. Hirose '04卒業*, Yoshiki Tsunekawa, Masahiro Okumiya

    Surface & Coatings Technology   200   1155 - 1161   2005.9

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  • 超音波振動振動端面における液体付着現象とその鋳造プロセスへの応用 Reviewed

    田村 賢*, 佐藤哲也 平成14年度修士課程終了*, 恒川 好樹, 奥宮 正洋, 古川雄一 トヨタ自動車*

    日本鋳造工学会誌   77 ( 11 )   752 - 758   2005

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  • Liquid Adlhesion to an Ultrasonically Vibrating End Surface Reviewed

    Satoshi Tamura 現、水産大学校、元PD研究員*, Yoshiki Tsunekawa, Masahiro Okumiya

    Journal of Applied Physics   98 ( 063524 )   2005

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  • Plasma Sprayed Cast Iron Coatings Containing Solid Lubricant Graphite and h-BN structure Reviewed

    Yoshiki Tsunekawa, I.Ozdemir*, Masahiro Okumiya

    ProceedingsInternational Thermal Spray Conference(ITSC2005)   747 - 752   2005

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  • In-Process Exothermic Reaction in High-Velocity Oxyfuel and Plasma Spraying with SiO2/Ni/Al-Si-Mg Composite Powder Reviewed

    I.Ozdemir*, I.Hamanaka 修士課程2002年度修了*, Yoshiki Tsunekawa, Masahiro Okumiya

    Journal of Thermal Spray Technology   14 ( 3 )   321 - 329   2005

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  • Mechanism of Ultrasonic Liquid Adhesion Phenomenon Reviewed

    S.Tamura*, Yoshiki Tsunekawa, Masahiro Okumiya

    Proceedings9'th Asian Foundry Congress   395 - 403   2005

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  • Fabrication of High Strength Bonded Abrasive Wheel with Ultrasonic Composite Plating Reviewed

    Masahiro Okumiya, Yoshiki Tsunekawa, Akira Ueno*, 今田 康夫, Ryouichi Ichino Nagoya Univ.*, Satoshi Tamura*, Takuma Saida 本学修士修了生*

    Materials Transactions   46 ( 9 )   2047 - 2051   2005

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  • Surface modification of aluminum using ion nitriding and barrel nitriding Reviewed

    Masahiro Okumiya, Yoshiki Tsunekawa, H. Sugiyama 本学学部卒業生*, Y. Tanaka 本学学部卒業生*, N. Takano 本学学部卒業生*, M. Tomimoto 本学学部卒業生*

    Surface & Coatings Technology   ( 200 )   35 - 39   2005

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  • Characterization and Properties of Splats Sprayed with Different Cast Iron Powders Reviewed

    M. F. Morks Central Metallurgical Research and Development Institute*, Yoshiki Tsunekawa, Masahiro Okumiya

    Materials Letters   58   2481 - 2485   2004.4

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  • High-temperature properties of joint interface of VPS-tungsten coated CFC Reviewed

    S. Tamura*, X. Liu Southwestern Institute of Physics*, K. Tokunaga*, Yoshiki Tsunekawa, Masahiro Okumiya, N. Noda Kyushu University*, N. Yoshida National Institute for Fusion Science*

    Journal of Neclear Materials   329-333   711 - 716   2004

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  • Cast Iron Coatings Containing Graphite Structure by Atmospheric Plasma Spraying Reviewed

    I. Ozdemir*, T. Ueno 2003年度修士修了・トヨタ自動車*, Yoshiki Tsunekawa, Masahiro Okumiya

    International Thermal Spray Conference(ITSC2004),CD-Proceedings (2004)   2004

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  • In-process Exothermic Reaction in HVOF and Plasma Spraying with SiO2/Ni/Al-Si-Mg Composite Powder Reviewed

    I. Ozdemir*, I. Hamanaka 2002年度修士修了・トヨタ自動車*, Yoshiki Tsunekawa, Masahiro Okumiya

    International Thermal Spray Conference(ITSC2004),CD-Proceedings (2004)   2004

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  • Application of Electrolyte Jet to Rapid Composite Electroplating Reviewed

    H. Takeuchi 博士修了*, S. Tamura*, Yoshiki Tsunekawa, Masahiro Okumiya

    Surface Engineering   20 ( 1 )   25 - 30   2004

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  • Effect of Powder Composition on the Microstructure and Wear Properties of Sprayed Cast Iron Coatings Reviewed

    M. F. Morks Central Metallurgical Research,Development Institute*, M. A. Shoeib Central Metallurgical Research,Development Institute*, Yoshiki Tsunekawa, Masahiro Okumiya

    Thermal Spray 2003, Advancing the Science and Applying the Technology   317 - 322   2003

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  • Preparation of In-situ Composite Slurry and Its Selective Incorporation Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, K. Sugimura*, N. Koyama*, K. Mitani 修士1*

    Proceedings 10th International Ceramics Congress and 3rd Forum on New Materials(CIMTEC2002)   C   497 - 507   2003

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  • Microstructure of Plasma-Sprayed Cast Iron Splats with Different Particle Sizes Reviewed

    M. F. Morks*, Yoshiki Tsunekawa, Masahiro Okumiya, M. A. Shoeib Central Metallurgical Research and Development Institute*

    Materials Transactions   44 ( 4 )   743 - 748   2003

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  • Splat Microstructure of Plasma Sprayed Cast Iron with Different Chamber Pressures Reviewed

    M. F. Morks*, Yoshiki Tsunekawa, Masahiro Okumiya, M. A. Shoeib Central Metallurgical Research and Development Institute*

    Journal of Thermal Spray Technology   12 ( 2 )   282 - 289   2003

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  • Plasma Sprayed Coatings with Water and Gas Atomised Bearing Steel Powders Reviewed

    Yoshiki Tsunekawa, T. Ueno*, Masahiro Okumiya, T. Yashiro Daido Steel Company Ltd*

    Surface Engineering   19 ( 1 )   17 - 22   2003

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  • Formation of Super-Hard Modified Surface by Reactive Electrical Discharge Machining Reviewed

    Yoshiki Tsunekawa, N. Elumba*, Masahiro Okumiya

    Materials Science Forum   426-432   2605 - 2610   2003

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  • Creation of high strength bonded abrasive wheel with ultrasonic aided composite plating Reviewed

    Masahiro Okumiya, Yoshiki Tsunekawa, Takuma Saida 2002修士修了*, Ryouichi Ichino Nagoya University*

    Surface & Coatings Technology   ( 169-170 )   112 - 115   2003

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  • Carbon content control in plasma carburizing using process parameter and probe methods Reviewed

    Masahiro Okumiya, Yoshiki Tsunekawa, T. Matsumoto 学部卒業*, K. Tanaka 修士修了*, Takayuki Nagai Nagai Shoukai Co., Ltd (受託研究員)*

    Surface & Coatings Technology   ( 174-175 )   1171 - 1174   2003

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  • 天然ガスを有効利用した鋼の表面熱処理 Reviewed

    奥宮 正洋, 恒川 好樹, 倉橋和宏 東邦ガス*, 建部二朗 東京ガス*, 前田章雄 大阪ガス*, 一瀬伸也 学部卒業*, 三上活弘 学部卒業*

    表面技術   54 ( 12 )   213 - 217   2003

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  • Effect of Particle Size and Spray Distance on the Features of Plasma Sprayed Cast Iron Reviewed

    M. F. Morks Central Metallurgical Research,Development Institute*, M. A. Shoeib Central Metallurgical Research,Development Institute*, Yoshiki Tsunekawa, Masahiro Okumiya

    Thermal Spray 2003, Advancing the Science and Applying the Technology   1081 - 1085   2003

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  • 天然ガスを用いたガス浸炭における炉内残留メタン濃度が酸素センサより算出されるカーボンポテンシャルに及ぼす影響 Reviewed

    奥宮 正洋, 恒川 好樹, 一瀬伸也 愛知製鋼(株)*, 倉橋和宏 東邦ガス(株)*, 建部二朗 東邦ガス(株)*, 前田章雄 大阪ガス(株)*

    熱処理   42 ( 4 )   269 - 275   2002.8

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  • インプロセス反応を伴うSiO2/Al-Mg合金系造粒粉末のHVof溶射 Reviewed

    濱中一平*, 恒川 好樹, 奥宮 正洋, 福本昌宏 豊橋技術科学大学*, Young-gyo Jung 豊橋技術科学大学*

    日本溶射協会誌   39 ( 1 )   1 - 6   2002.1

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  • Hybrid Carbon Potential Control in Gas Carburizing Using Natural Gas as the Enriched Gas Reviewed

    Masahiro Okumiya, Yoshiki Tsunekawa, Kazuhiro Kurahashi Toho Gas Co. Ltd.*, Jiro Takebe Toho Gas Co. Ltd.*, Akio Maeda Toho Gas Co. Ltd.*

    The 1st International Surface Engineering Congress and the 13th IFHTSE Congress   63 - 67   2002

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  • 電磁浮力による生成複合スラリーの部分複合化 Reviewed

    恒川 好樹, 奥宮 正洋, 杉村恵吾*

    日本鋳造工学会誌   74 ( 3 )   170 - 176   2002

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  • Splat Morphology and Microstructure of Plasma Sprayed Cast Iron with Different Preheat Substrate Temperatures Reviewed

    M. F. Morks*, Yoshiki Tsunekawa, Masahiro Okumiya, M. A. Shoeib Central Metallurgical Research and Development Institute*

    Journal of Thermal Spray Technology   11 ( 2 )   226 - 232   2002

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  • Application of In-process Reaction to the Fabrication of MgAl2O4/Al-Si Composite Coating by HVOF Spraying Reviewed

    Yoshiki Tsunekawa, I. Hamanaka 2002修士修了*, Masahiro Okumiya, Y. Jung Toyohashi University of Technology*, M. Fukumoto Toyohashi University of Technology*

    Proceedings of Surface Modification Technologies   15   9 - 18   2002

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  • Application of Natural Gas to Vacuum Carburizing Reviewed

    Masahiro Okumiya, Hirotsugu Yamamoto 2002修士修了*, Yoshiki Tsunekawa, Satishi Hagi Toho Gas Co. Ltd.*, Moriyoshi Tamura Toho Gas Co. Ltd.*

    The 1st International Surface Engineering Congress and the 13th IFHTSE Congress   52 - 57   2002

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  • Surface Modification of Aluminum Using Ion Nitriding and Fluidized Bed Reviewed

    Masahiro Okumiya, Yoshiki Tsunekawa, Toshiyuki Murayama NSK Ltd.*

    Surface & Coatings Technology   142-144   235 - 240   2001.11

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  • 天然ガスをエンリッチガスに使用した際の酸素センサおよび二酸化炭素センサによる鋼の浸炭雰囲気制御 Reviewed

    倉橋和宏 東邦ガス*, 建部二朗 東邦ガス*, 佐伯孝敏 大阪ガス*, 奥宮 正洋, 恒川 好樹, 冨田明君 豊田工機*, 濱田徹 トヨタ自動車*

    日本金属学会誌   65 ( 9 )   874 - 879   2001.9

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  • Formation of TiC/Ti2AlC Composite Layer and Improvement on Surface Roughness Reviewed

    Masahiro Okumiya, Yoshiki Tsunekawa, Kanehiro Fukaya Aisan Industry Co., Ltd.*, Naotake Mohri Tokyo University*

    Materials Transactions   42 ( 8 )   1717 - 1722   2001.8

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  • In Situ Formation of Titanium Carbide by Reactive Plasma Spraying with Elemental Titanium Powder Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, A. Kogure*

    ProceedingsSurface Modification Technologies   14   10 - 15   2001

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  • Splat Morphology and Graphite Formation in Plasma Sprayed Cast Iron Reviewed

    M. F. Morks*, Yoshiki Tsunekawa, Masahiro Okumiya, M. A. Shoeib*

    ProceedingsThermal Spray 2001:New Surfaces for a New Millennium   829 - 834   2001

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  • Mechanical Property Improvement by the Natural-gas Enrichment Carburization Process Reviewed

    OKUMIYA Masahiro, TSUNEKAWA Yoshiki, HAMADA Toru, KURAHASHI Kazuhiro, MAEDA Akio, TAKEBE Jiro

    The proceedings of the JSME annual meeting   2000   47 - 48   2000

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    In this study, natural gas was used as raw material and enriched gas of carrier gas, and the development of the system which shortened the carburization time was examined. The mechanical property of the sample which is treated by using this method was evaluated. The control of carbon potential by the oxygen concentration is possible, if enriched gas flow rate in which soot does not arise is chosen, even if the natural gas is used for enriched gas. And, the responsibility is better than carbon potential control by the carbon dioxide concentration. Using the difference between carbon potential calculated from carbon dioxide concentration and and it calculated from oxygen concentration, the system which foresaw the soot generation was developed. By controlling the carbon potential using this system and oxygen sensor, the carburization time was shortened, and retained methane quantity and using enriched gas quantity are drastically decreased.

    DOI: 10.1299/jsmemecjo.2000.3.0_47

  • SiC粒子混合電解液により噴流前処理した基材とNi-Pめっき皮膜の密着強度 Reviewed

    竹内宏充 H10博士修了・豊田合成*, Yoshiki Tsunekawa, Masahiro Okumiya

    表面技術   51 ( 1 )   75 - 80   2000

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  • Preparation of In-Situ Reinforced Composites Using Ultrasonic Vibration and Selective Incorporation of Reinforcements by Magnetic Field Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, H. Suzuki MS in 1999 presently Chuo Spring Co.Ltd.*, Y. Genma Dr.Eng.in 1998 presently Toyota Motor Corp.*

    Aluminum transactions   2 ( 1 )   1 - 10   2000

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  • 反応性RFプラズマ溶射によるチタンシリサイド基複合皮膜の形成 Reviewed

    田中勝也 H8修士修了,NOK*, 恒川 好樹, 奥宮 正洋

    日本溶射協会誌   36 ( 4 )   197 - 203   1999

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  • Mechanical properties and tribological behavior of TiN-CrAlN and CrN-CrAlN multilayer coatings Reviewed

    Masahiro Okumiya, Michael Griepentrog Bundesanstalt for Materialforschungund -prung(BAM*

    Surface & Coatings Technology   112   123 - 128   1999

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  • アルミニウム合金溶湯による複合材料の超音波鋳造接合 Reviewed

    恒川 好樹, 奥宮 正洋, 古川雄一 H10学部卒業*, 弦間喜和 H10博士修了*

    日本鋳造工学会誌   71 ( 10 )   691 - 697   1999

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  • Rapid Codeposition of Ceramic Particles and Ni-P Matrix in Jet Electroplating Reviewed

    Hiromitsu Takeuchi; 博士3*, Yoshiki Tsunekawa, Masahiro Okumiya

    Proceedings of 11th International Conference on Surface Modification Technologies (SMT11)   336 - 347   1998

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  • 超音波溶湯撹拌法によるアルミニウム合金溶湯中での安定酸化物の生成複合化 Reviewed

    弦間喜和 1998.3博士修了・トヨタ自動車*, 鈴木秀和 M2*, 恒川 好樹, 奥宮 正洋, 毛利尚武*

    日本金属学会誌   62 ( 6 )   570 - 576   1998

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  • 電解液噴流によるノンマスキング部分めっき Reviewed

    竹内宏充 1998.9博士修了・豊田合成*, 恒川 好樹, 奥宮 正洋, 河合豊 1997.3.卒業・アイシン精機*

    日本金属学会誌   62 ( 4 )   377 - 382   1998

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  • Nitriding of Metal Droplets in Synthesis of Intermetallic Matrix Composite Coatings by Reactive RF Plasma Spraying Reviewed

    Yoshiki Tsunekawa, Makoto Hiromura Toyota Machining Works Ltd.*, Masahiro Okumiya

    Proceedings of 15th International Thermal Spray Conference,ASM International   1143 - 1148   1998

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  • 発熱反応を利用した超音波渦流撹拌によるアルミナ粒子の複合化 Reviewed

    弦間喜和 博士3*, 恒川 好樹, 奥宮 正洋, 棚田優子 H7修了・日本精工*, 毛利尚武*

    日本鋳造工学会誌   69 ( 7 )   578 - 584   1997.7

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  • Formation of Composite Layer Containing TiC Precipitates by Electrical Discharge Alloying Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, Naotake Mohri*, Eiji Kuribe H6卒業・鐘淵化学工業*

    Materials Transactions,JIM   38 ( 7 )   630 - 635   1997.7

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  • SiC粒子混合電解液噴流によるアルミニウム合金基材のめっき前処理 Reviewed

    竹内宏充 博士3*, Yoshiki Tsunekawa, Masahiro Okumiya, 遠山正之*

    日本金属学会誌   61 ( 7 )   595 - 601   1997.7

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  • 噴流めっきにおけるセラミックス粒子とNi-Pマトリックスの共析挙動 Reviewed

    竹内宏充 博士3*, 恒川 好樹, 奥宮 正洋

    日本金属学会誌   61 ( 5 )   437 - 443   1997.5

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  • Reaction of Metal Droplets during Flight and on Substrate in Reactive Low Pressure DC Plasma Spraying Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, Masao Okuda Toyota Motor*, Masahiro Fukumoto Toyohashi University of Technology*

    Proceedings of 11th International Conference on Surface Modification Technologies (SMT11)   234 - 245   1997

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  • パルス放電によるアルミニウム上への酸窒化アルミニウムの生成 Reviewed

    奥宮 正洋, 恒川 好樹, 近藤 浩 H6卒業・アイシン・エイ・ダブリュ*, 吉田憲治 H7卒業・アイシン精機*

    日本金属学会誌   61 ( 2 )   153 - 157   1997

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  • Incorporation of Alumina Particles with Different Shapes and Sizes into Molten Aluminum Alloy by Melt Stirring with Ultrasonic Vibration Reviewed

    Y. Genma D2*, Yoshiki Tsunekawa, Masahiro Okumiya, N. Mohri*

    Materials Transactions,JIM   38 ( 3 )   232 - 239   1997

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  • Formation of Compositionally Graded Ni-P Deposits Containing SiC Particles by Jet Electroplating Reviewed

    H. Takeuchi D2*, Yoshiki Tsunekawa, Masahiro Okumiya

    Materials Transactions,JIM   38 ( 1 )   43 - 48   1997

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  • Melt Stirring Process with Ultrasonic Vibration for the Preparation of Al2O3 Particle/Al-Mg Composite Slurry Reviewed

    Yoshikazu Genma 博士3*, Yoshiki Tsunekawa, Masahiro Okumiya, Naotake Mohri*

    Proceedings of the 4th Decennial International Conference on Solidification Processing (SP97)   97 - 100   1997

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  • Surface Modification of Aluminum Matrix Composites by Electrical Discharge Alloying Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, N. Mohri*, E. Kuribe H6卒業・鐘淵化学工業*

    Materials Science Forum   217-222   1661 - 1666   1996

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  • 低炭素鋼のプラズマ浸炭における炭素濃度制御へのプローブ診断法の適用 Reviewed

    奥宮 正洋, 恒川 好樹, 新美格 本学名誉教授*, 松本敏行 H4卒・シロキ工業*, 田中勝也 H5卒・NOK*

    日本金属学会誌   60 ( 2 )   225 - 230   1996

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  • Chromium-Nitride in situ Composites with a Compositional Gradient Formed by Reactive DC Plasma Spraying Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, T. Kobayashi H5卒業・住友電気業*, M. Okuda H6卒業・トヨタ自動車*, M. Fukumoto 豊橋技術科学大学*

    Journal of Thermal Spray Technology   5 ( 2 )   139 - 144   1996

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  • 超音波渦流攪拌によるアルミニウム溶湯へのアルミナ粒子の複合化 Reviewed

    弦間喜和 D2*, 恒川 好樹, 奥宮 正洋, 棚田優子 H7修了・日本精工*, 毛利尚武*

    日本鋳造工学会誌   68 ( 11 )   969 - 974   1996

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  • Key Engineering Materials Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, Naotake Mohri*, H. Nakanishi*

    G. M. Newaz,H. N. Aeschbacher,F. H. Wohlbier   1995.7 (   ISSN:10139826 )

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  • Synthesis of Chromium Nitride In Situ Composites by Reactive Plasma Spraying with Ttansferred Arc Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, T. Kobayashi H5卒・住友電 気工業*

    Proc. 14th International Thermal Spray Conference   2   755 - 760   1995

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  • N2-NH3-CO2ガス雰囲気における低炭素鋼の窒化 Reviewed

    Masahiro Okumiya, Yoshiki Tsunekawa, 新美格 本学名誉教授*, 室賀 啓 愛知製鋼*, 丸山浩二 日野自動車工業*

    日本金属学会誌   59 ( 2 )   177 - 182   1995

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  • Application of ultrasonic vibration to molten aluminum infiltration Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, N. Mohri*, H. Nakanishi*

    Key Engineering Materials   104-107   215 - 224   1995

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  • Al23粒子/Ni複合メッキへの噴流の応用 Reviewed

    Masahiro Okumiya, 竹内宏光 H6修了・豊田合成*, Yoshiki Tsunekawa

    日本金属学会誌   59 ( 6 )   640 - 645   1995

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  • 鋼への炭素・窒素侵入の高効率化に関する研究 Reviewed

    奥宮 正洋

    (学位論文)名古屋大学   1994

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  • Application of ultrasonic vibration to liquid processing of metal matrix composites Reviewed

    Yoshiki Tsunekawa, H. Nakanishi ダイハツ工業*, Masahiro Okumiya, N. Mohri*

    Proceedings of 2nd International Confarence for Cast MMC   70 - 80   1994

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  • Application of ultrasonic vibration to liquid processing of MMC Reviewed

    Yoshiki Tsunekawa, H. Nakanishi*, Masahiro Okumiya, N. Mohri*

    AFS Transactions   102   953 - 958   1994

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  • Application of Propane Gas to Plasma Carburizing Reviewed

    Okumiya Masahiro, Tsunekawa Yoshiki, Niimi Itaru, Sakakibara Katsutosi

    Materials Transactions, JIM   35 ( 5 )   351 - 355   1994

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    This work was initiated to study the influences of treatment time, plasma current and plasma voltage on the carbon content of specimens in a plasma carburizing process with propane as a carburizing gas. Low carbon steel foil with a thickness of 0.25 mm was used. The number of carbon atoms dissociated from the premixed propane by heat and plasma energy is about 2.5 times higher than that dissociated from the premixed methane. Thus, for the same treatment time, the carbon content of a specimen when using propane is 2.6 times higher than that in methane. The carbon content increases with increasing plasma current, plasma voltage and treatment time. For a 1.9∼7.4 vol% premixed propane ratio, however, the carbon content is saturated with 1.75∼1.90 mass%. Also, the increasing rate of carbon content in propane is higher than that in methane. But the carbon content of saturation when using propane is the same as that in methane. The carbon content is obtained using an equation containing the treatment time variable, the average obtained plasma voltage, the standard voltage and the plasma current. Using this equation, the carbon content can be predicted by the treatment parameters prior to the actual plasma carburizing process.

    DOI: 10.2320/matertrans1989.35.351

  • 短繊維の重畳磁場配向法およびアルミナ/マグネシウム合金複合材料の製造 Reviewed

    新美格*, 奥宮 正洋, 篠宮幸喜広 豊田紡織*, 森 大二 豊田紡織*

    日本金属学会誌   58 ( 6 )   675 - 682   1994

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  • Surface modification of aluminum by electrical discharge alloying Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, N. Mohri*, I. Takahashi ダイハツ工業*

    Materials Science and Engineering A.   174   193 - 198   1994

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  • 石膏鋳型鋳造による短繊維17-7PH/マグネシウム合金複合材料の作製 Reviewed

    新美格*, 奥宮 正洋, 倉持公一 日本火災海上*, 杉本 猛 不二越*

    日本鋳物協会誌   66 ( 4 )   263 - 268   1994

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  • 固液界面の濡れ性に及ぼす超音波加振の影響 Reviewed

    中西治通 ダイハツ工業・受託研究員*, 恒川 好樹, 毛利尚武*, 奥宮 正洋, 新美格*

    軽金属学会誌   43 ( 1 )   8 - 13   1993

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  • Ultrasound-assisted pressureless infiltration of molten aluminum into alumina capillaries Reviewed

    H. Nakanishi ダイハツ工業*, Yoshiki Tsunekawa, Masahiro Okumiya, N. Mohri*

    Journal of Material Science Letters   12 ( 16 )   1313 - 1315   1993

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  • 放電融合によるダイカストアルミニウム合金へのTiC/TiAl生成複合層の形成 Reviewed

    恒川 好樹, 奥宮 正洋, 毛利尚武*, 小杉利彦 トヨタ自動車*, 新美格*

    日本鋳物協会誌   65 ( 10 )   783 - 788   1993

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  • チタンアルミナイド生成発熱反応を利用したアルミナ粒子/アルミニウム溶湯系の超音波溶浸 Reviewed

    中西治通 ダイハツ工業・受託研究員*, 恒川 好樹, 奥宮 正洋, 毛利尚武*, 新美 格*, 佐藤誠晃 小糸制作所*

    日本金属学会誌   57 ( 1 )   81 - 87   1993

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  • Ultrasonic infiltration in alumina fiber/molten aluminum system Reviewed

    Haruyuki Nakanishi ダイハツ工業・受託研究員*, Yoshiki Tsunekawa, Masahiro Okumiya, Naotake Mohri*

    Materials Transactions,JIM   34 ( 1 )   62 - 68   1993

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  • Effect of NH3 Stepwise Increase in Gas Carbonitriding Atmosphere on Nitrogen Content of Low Carbon Steel Reviewed

    Okumiya Masahiro, Tsunekawa Yoshiki, Niimi Itaru, Kurata Kazumi, Muroga Akira

    Journal of the Japan Institute of Metals and Materials   57 ( 4 )   449 - 454   1993 (   ISSN:0021-4876 )

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    In conventional gascarbonitriding, voids appeared in a surface layer right after the nitrogen content reached about 0.4 mass%, and then the nitrogen content decreases rapidly. The authors have established the novel method named a retained ammonia rising method that gives higher nitrogen contents without void formation. The influence of retained ammonia rising rate in the new gascarbonitriding process on the void formation and nitrogen content was studied using pure iron and low carbon steel foil with a thickness of 0.25 mm. Wear-resistance and fatigue limits for bulk specimens that were treated by the retained ammonia rising method were studied using medium carbon steel.<BR>The critical nitrogen contents for void formation in pure iron [CNp] and in low carbon steel [CNl] were described by the logarithm equations with the variable treating times [t], respectively.<BR>(This article is not displayable. Please see full text pdf.) <BR>The rising rate of retained ammonia for void formation [R] was also described by the exponential equations with the variable CNp or CNl.<BR>(This article is not displayable. Please see full text pdf.) <BR>For example, at the treating time of 1.8 ks, by the ammonia rising method, the critical nitrogen content of pure iron foil for void formation was 0.78 mass%, that was about 1.5 times that in conventional gascarbonitriding. The critical nitrogen content of low carbon steel foil for void formation was 0.81 mass%, that was about three times that in conventional gascarbonitriding.<BR>The wear resistance of medium carbon steel treated by the ammonia rising methed was about twice that in conventional gascarbonitriding. This is due to the improvement in resistance to temper softening and also to the increase in surface hardness through martensite transformation of the retained austenite during the wear test.<BR>Fatigue limits of medium carbon steel treated by the ammonia rising method did not differ from those in conventional gascarbonitriding. The retained austenite which prevented cracks from initiation and propagation was transformed into martensite during the fatigue test.

    DOI: 10.2320/jinstmet1952.57.4_449

  • アルミナ粒子/アルミニウム溶湯系における超音波溶浸 Reviewed

    中西治通 ダイハツ工業・受託研究員*, 恒川 好樹, 毛利尚武*, 奥宮 正洋, 新美格*

    軽金属学会誌   43 ( 1 )   14 - 19   1993

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  • 金属溶湯とセラミック粒子の複合化における発熱反応による臨界溶浸圧の低下 Reviewed

    中西治通 ダイハツ工業・受託研究員*, 恒川 好樹, 奥宮 正洋, 新美格*, 高橋晃宏 イーグル工業*

    日本鋳物協会誌   65 ( 2 )   106 - 111   1993

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  • High Temperature Stability of Titanium Aluminide Matrix Insitu Composites Fabricated by Reactive Low Pressure Plasma Spraying Reviewed

    Yoshiki Tsunekawa, Kenji Gotoh*, Masahiro Okumiya, Naotake Mohri*

    Proceedings of International Thermal Spray Conference '92   189 - 194   1992

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  • Synthesis and high temperature stability of titanium aluminide matrix in situ composites Reviewed

    Yoshiki Tsunekawa, Kenji Gotoh 日本車輌製造*, Masahiro Okumiya, Naotake Mohri*

    Journal of Thermal Spray Technology   1 ( 3 )   223 - 229   1992

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  • Synthesis of iron aluminide matrix in situ composites from elemental powders by reactive low pressure plasma spraying Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, Kenji Gotoh 日 本車 輌製造*, Tsuyoshi Nakamnura 矢崎総業*, Itaru Niimi*

    Materials Science and Engineering A   159   253 - 259   1992

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  • Prediction of Carbon Content in Plasma-Carburizing of Low Carbon Steel Reviewed

    Okumiya Masahiro, Tsunekawa Yoshiki, Niimi Itaru, Miyahara Hiromitsu, Sakakibara Katsutosi

    Journal of the Japan Institute of Metals and Materials   56 ( 4 )   446 - 451   1992 (   ISSN:0021-4876 )

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    Influences of treating time, plasma current and plasma voltage in plasma-carburizing process on carbon content was studied using low carbon steel foils with a thickness of 0.25 mm. The increase in plasma current, plasma voltage and treating time caused the increased carbon content in specimens. Therefore, the quantitative prediction of carbon content which was varied with the treating parameters was done as follows.<BR>The carbon content C(t) was obtained by a linear equation with the variable treating times (t) at a constant plasma current (IP),<BR>(This article is not displayable. Please see full text pdf.) <BR>the slopes of lines increased proportionally to IP. At the higher IP, however, the increasing rate of C(t) decreased gradually as t increased, and the carbon content was saturated with about 1.9 mass% (t>5.4 ks, IP : 0.04 A).<BR>The carbon content C(V) was obtained by a linear equation with the variable plasma voltages at the constant IP and t,<BR>(This article is not displayable. Please see full text pdf.) <BR>where V was defined as the average voltage of those measured at every 600 seconds in discharging at the constant IP.<BR>Consequently, the carbon content [C(V, t)] at a given V and t was calculated as follows,<BR>(This article is not displayable. Please see full text pdf.) <BR>where VO was the standard plasma voltage defined as an average value of all V at each IP. Using the equations of C(V, t), the carbon content could be predicted by the treating parameters in advance of the practical plasma-carburizing process.

    DOI: 10.2320/jinstmet1952.56.4_446

  • マイカセラミックス粒子/アルミニウム複合系の臨界溶浸圧 Reviewed

    中西治通 ダイハッ工業・受託研究員*, 恒川 好樹, 奥宮 正洋, 東 正毅, 金谷正基 トヨタ自動車*

    軽金属学会誌   42 ( 2 )   92 - 97   1992

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  • Carbon Content Control of Steel Foil in Plasma-carburizing Reviewed

    Okumiya Masahiro, Tsunekawa Yoshiki, Niimi Itaru, Kadotani Masayuki

    Journal of the Japan Institute of Metals and Materials   55 ( 12 )   1353 - 1357   1991 (   ISSN:0021-4876 )

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    The influences of the specimen size, treating time and retained methane content in the plasma-carburizing process on the carbon content and microstructures of specimens were studied. Case hardening steel (S15CK) foils with 0.25 mm thickness and low carbon steel foils with 0.06 mm thickness were used as specimens. When plasma-voltage was held constant, the plasma-current increased proportionally to the specimen surface area. Therefore the current density and carbon content could be kept constant. The time to reach the maximum carbon content decreased as the retained methane content increased. With increasing time in plasma-carburizing, the carbon content decreased slightly and a ferrite layer was formed near the surface. These specimens had definite carbon contents respectively regardless of both retained methane and treating time. The definite carbon content in S15CK was 1.1 mass%, and that in low carbon steel was 0.7 mass%. Since the thickness of the ferrite layer was not practically affected by the specimen thickness, the carbon content became lower in low carbon steel than that in S15CK. The decarburized ferrite layer was only observed in the sooted specimens. The potential gradient in the surface layer increased with the soot deposited, and the electrons emitted from the specimens increased. Hence, decarburization would occur due to the discharging of carbon atoms in the surface layer.

    DOI: 10.2320/jinstmet1952.55.12_1353

  • 減圧プラズマ溶射によるチタンアルミナイド皮膜の創製 Reviewed

    恒川 好樹, 河野義信 住友電気工業*, 奥宮 正洋, 新美格*

    軽金属学会誌   41 ( 3 )   158 - 163   1991

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  • 反応性減圧プラズマ溶射によるチタンアルミナイド基複合材料皮膜 Reviewed

    恒川 好樹, 河野義信 住友電気工業*, 奥宮 正洋, 新美 格*

    軽金属学会誌   41 ( 3 )   164 - 169   1991

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  • Control of the Surface Carbon Content by Measurement of Retained Methane in Plasma-carburizing Reviewed

    Okumiya Masahiro, Tsunekawa Yoshiki, Niimi Itaru, Hamada Masahiko, Mabe Michihiro

    Journal of the Japan Institute of Metals and Materials   55 ( 9 )   981 - 985   1991 (   ISSN:0021-4876 )

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    Low-alloy steel (SCr42O) bulk specimens were plasma-carburized in methane/hydrogen mixed gas. The carburizing gas near a specimen was collected by a sampling cylinder and a piston system, and the retained methane in carburizing gas was measured by gas chromatography. The influences of treating temperature, plasma energy and vacumm-pumping speed on the retained methane were studied.<BR>The decomposing speed of methane being quite slow, the partial pressure of methane was extremely higher than the equilibrium partial pressure in plasma-carburizing. Since the methane was decomposed by heating, the retained methane decreased as treating temperature increased. It also decreased by plasma energy. As the retentive time of the carburizing gas in the furnace decreased with increasing pumping speed, the retained methane increased.<BR>The influences of the retained methane, treating temperature, pressure, time and pumping speed on the surface carbon content of specimen were also studied. The surface carbon content of the specimen was determined by the retained methane in the temperature range of 1203 and 1373 K. It increased as the retained methane increased. Under the stable glow discharge, it increased as the chamber pressure, pumping speed and treating time increased.<BR>The number of carbon atoms which were permeated into the specimen would agree with that of the dissociated carbon from the methane by plasma energy.

    DOI: 10.2320/jinstmet1952.55.9_981

  • アルミナ繊維/アルミニウム複合系における臨界溶浸圧のプロセシングパラメータ依存性 Reviewed

    中西治通 ダイハツ工業・受託研究員*, 恒川 好樹, 奥宮 正洋, 新美格*

    軽金属学会誌   41 ( 9 )   576 - 581   1991

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  • アルミナ繊維/アルミニウム複合系における臨界溶浸圧の繊維配向依存性 Reviewed

    中西治通 ダイハツ工業・受託研究員*, 恒川 好樹, 奥宮 正洋, 東 正毅, 新美 格*

    軽金属学会誌   41 ( 5 )   325 - 330   1991

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  • Critical Carbon and Nitrogen Contents for Formation of Specific Structure in Gas-Carbonitriding Reviewed

    Okumiya Masahiro, Tsunekawa Yoshiki, Niimi Itaru, Kameda Hiroyuki

    Journal of the Japan Institute of Metals and Materials   54 ( 2 )   208 - 213   1990 (   ISSN:0021-4876 )

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    Pure iron and low-carbon steel (S15CK) foils were used as a specimen. Carbon and nitrogen contents in the furnace atmosphere of gas-carbonitriding were controlled by the dew point and retained ammonia, and the influence of temperature on the critical carbon and nitrogen contents for the formation of specific microstructures was studied. The specific microstructures were determined to be void, cementite, and graphite. The effects of the carbon and nitrogen contents on the mechanism of formation of the specific microstructures were discussed. In both kinds of specimen, the critical nitrogen content for formation of voids decreased with the treating temperature, and time. The critical carbon content for the formation of cementite or graphite increased with the treating temperature, but it was constant regardless of the treating time. The critical carbon content for the formation of cementite was practically unaffected by the nitrogen content. Under the same treating conditions, the critical carbon for the formation of cementite or graphite in pure iron and S15CK was nearly equal to each other. The critical nitrogen for the formation of void in pure iron was always lower than that in S15CK, because there were nonmetallic inclusions in S15CK and the austenite grain size was finer. In both specimens, graphite was formed only in the case of carbonitriding in which the nitrogen content was over about 0.1 mass%. Cementite existed whenever graphite was formed, and graphite existed mainly in and near cementite but sometimes at a distance. It appeared that nitrogen added to steels would afford the situation for formation of graphite in the solid phase and assist graphite formation.

    DOI: 10.2320/jinstmet1952.54.2_208

  • 遠心力によるアルミナ短繊維強化アルミニウム合金複合材料の曲げ強度向上 Reviewed

    恒川 好樹, 奥宮 正洋, 新美格*, 前田隆弘 イーグル工業*

    軽金属学会誌   40 ( 1 )   7 - 12   1990

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  • 熱遮蔽性複合溶射層の熱伝導 Reviewed

    原田弘司 トヨタ自動車・受託研究員*, 恒川 好樹, 奥宮 正洋, 新美格*

    日本溶射協会誌   27 ( 2 )   72 - 79   1990

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  • 減圧プラズマ溶射による熱遮蔽性傾斜組成層の熱伝導 Reviewed

    恒川 好樹, 原田弘司 トヨタ自動車・受託研究員*, 奥宮 正洋, 新美 格*

    日本金属学会誌   54 ( 11 )   1256 - 1260   1990

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  • 反応性減圧プラズマ溶射による炭化けい素ウィスカ強化アルミニウム基複合材料 Reviewed

    恒川 好樹, 吉田博彦 日本発条*, 奥宮 正洋, 新美格*

    軽金属学会誌   40 ( 12 )   885 - 890   1990

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  • 交流・直流重畳磁場により一軸配向させたSUS631/MC2複合材料 Reviewed

    澤田美一 日本火災海上保険*, 奥宮 正洋, 恒川 好樹, 新美格*

    日本鋳物協会誌   0.62 ( 6 )   447 - 451   1990

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  • 減圧プラズマ溶射によるZrO2/SUS310S傾斜組成層のプロセシングおよぴ熱特性 Reviewed

    恒川 好樹, 原田弘司 トヨタ自動車株式会社 受託研究員*, 奥宮 正洋, 新美 格*

    日本溶射協会誌   27 ( 4 )   214 - 219   1990

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  • 反応性減圧プラズマ溶射によるTiN/Ti複合皮膜の摺動特性 Reviewed

    恒川 好樹, 平井秀敏 豊田自動織機・受託研究員*, 奥宮 正洋, 新美格*

    日本溶射協会誌   26 ( 3 )   1150 - 1155   1989

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  • 減圧プラズマ溶射法によるK20・6TiO2/Al 複合材料の製造 Reviewed

    恒川 好樹, 奥宮 正洋, 新美格*, 吉田博彦*

    日本溶射協会誌   25 ( 3 )   1521 - 1527   1988

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  • ガス溶射法による炭化珪素ウイスカ強化アルミニウムの製造 Reviewed

    恒川好樹,奥宮正洋,新美格,奥村浩次(トヨタ自動車),福留昭司(同)

    軽金属学会誌   38 ( 10 )   581 - 587   1988

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  • CentrifugaIly Cast Aluminum Matrix Composites Containing Segregated Alumina Fibers Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, I. Niimi*, K. Yoneyama トヨタ自動車*

    Journal of Materials Science Letters   7 ( 8 )   830 - 32   1988

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  • Controlled Gas Carburizing Process for SCr420 Steel Reviewed

    Muroga Akira, Niimi Itaru, Tsunekawa Yoshiki, Okumiya Masahiro

    Journal of the Japan Institute of Metals and Materials   52 ( 5 )   495 - 501   1988 (   ISSN:0021-4876 )

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    A new gas carburizing process which is capable of easily determining a suitable parameter has been developed using an explicit finite-difference method and a direct-search method of optimization. In this process, a weighting factor was introduced into this process for optimizing the carbon profile and time. Increasing the weighting factor made the difference between the calculated and target carbon profiles smaller but the treating time longer. Calculated carbon profiles of SCr420 steel were compared with experimental results by a atmosphere-control system using a zirconia oxygen-sensor. Agreement between the calculated and measured profiles was very good.<BR>The dependence of the diffusion coefficient on carbon concentration in SCr420 steel is expressed experimentally as follows:<BR>(This article is not displayable. Please see full text pdf.) <BR>\oindentwhere C was the carbon concentration (mass%).<BR>The influence of the carburizing parameter on a variety of the initial conditions in the calculation process was also discussed in relation to the carbon profiles.

    DOI: 10.2320/jinstmet1952.52.5_495

  • 一軸配向析出硬化型ステンレス鋼短繊維強化マグネシウム合金の製造 Reviewed

    恒川 好樹, 奥宮 正洋, 新美格*, 山田忠彦 日本火災海上保険*

    日本鋳物協会誌   60 ( 9 )   596 - 601   1988

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  • 高温押出時の塑性流動がAl2O3/Al複合材料の繊維配向性および繊維長に及ぼす影響 Reviewed

    奥宮 正洋, 恒川 好樹, 新美格*, 尾崎勤*

    軽金属学会誌   37 ( 4 )   285 - 290   1987

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  • Flame-spraying fabrication of silicon carbide whiskerreinforced aluminum Reviewed

    Yoshiki Tsunekawa, Masahiro Okumiya, I. Niimi*, K. Okumura*

    Journal of Materials Science Letters   6 ( 2 )   191 - 193   1987

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▼display all

MISC

  • Surface Hardening Heat Treatment of Steel using Nitrogen Infiltration in Austenite Phase

    61 ( 3 )   76 - 81   2021.6 (   ISSN:0288-0490 )

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  • 高温浸窒処理後の除冷および再加熱・急冷による純鉄の組織変化 Reviewed

    南部 紘一郎, 中村篤史 材料プロセス*, 奥宮 正洋

    熱処理   60 ( 1 )   1 - 2   2020.2

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  • 一般熱処理の基礎 Reviewed

    奥宮 正洋, 南部 紘一郎

    熱処理   60 ( 1 )   11 - 17   2020.2

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  • Basics of General Heat Treatment

    60 ( 1 )   11 - 17   2020.2 (   ISSN:0288-0490 )

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  • Change of Surface Structure by Carburizing and Nitriding Quenching and Examples of Recent Research and Development

    60 ( 10 )   2 - 11   2019.10 (   ISSN:0910-1985 )

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  • 26th IFHTSE (The International Federation for Heat Treatment and Surface Engineering)

    59 ( 5 )   289 - 291   2019.10 (   ISSN:0288-0490 )

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  • Annual Report on Metal Heat Treatment Industry in FY2018

    59 ( 4 )   209 - 214   2019.8 (   ISSN:0288-0490 )

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  • 回転バレル窒化による粒子分散型皮膜の形成

    松岡 崇真, 吉田 昌史, 山崎 誠志, 奥宮 正洋

    精密工学会学術講演会講演論文集   2018 ( 0 )   708 - 709   2018

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    Language:Japanese   Publisher:公益社団法人 精密工学会  

    <p>アルミニウムの表面に複合皮膜を形成することで、硬度や放熱性などの機能性を向上させることができ、使用範囲は広がると考えられる。前報では回転バレル窒化法を用いて、粒子分散型皮膜をアルミニウム表面に形成するための方法として回転バレル窒化法を提案した。本方法では粉末粒径が皮膜の形成機構に大きく影響を及ぼすと考えられる。そこで本報告では、皮膜形成に及ぼす粉末粒径の影響について検討した。</p>

    DOI: 10.11522/pscjspe.2018A.0_708

  • Report of Study on High Temperature Nitriding and Quenching

    57 ( 4 )   222 - 224   2017.8 (   ISSN:0288-0490 )

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  • The 24th IFHTSE (International Federation for Heat Treatment and Surface Engineering) Congress

    57 ( 4 )   219 - 221   2017.8 (   ISSN:0288-0490 )

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  • Fundamentals and Applications of Carburizing and Nitriding

    56 ( 2 )   47 - 58   2016.4 (   ISSN:0288-0490 )

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  • N-クエンチの概要と自動車部品への適用状況 (特集 自動車の表面改質)

    奥宮 正洋

    Mechanical surface tech = メカニカル・サーフェス・テック : 表面改質&表面試験・評価の技術情報誌   ( 30 )   18 - 20   2016.2

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  • 特殊鋼の熱処理 (特集 やさしく知る特殊鋼の熱処理)

    奥宮 正洋

    特殊鋼   64 ( 4 )   2 - 4   2015.7 (   ISSN:0495-7644 )

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  • N-クエンチ及びプラズマN-クエンチ

    奥宮 正洋, 稲葉 孝二郎, 藤田 理

    工業加熱 = Industrial heating   51 ( 2 )   1 - 6   2014.3 (   ISSN:0454-1499 )

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  • 熱処理による材料の特性向上に分析・評価技術が果たす役割 (特集 表面改質の信頼性を確保する試験・評価技術)

    奥宮 正洋

    Mechanical surface tech = メカニカル・サーフェス・テック : 表面改質&表面試験・評価の技術情報誌   ( 15 )   14 - 16   2013.8

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  • The 20th IFHTSE (International Federation for Heat Treatment and Surface Engineering) Congress

    OKUMIYA Masahiro, KAWASAKI Kazuhiro

    53 ( 1 )   11 - 12   2013.2 (   ISSN:0288-0490 )

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  • Report of Technical Survey Group to Germany

    OKUMIYA Masahiro

    53 ( 1 )   13 - 16   2013.2 (   ISSN:0288-0490 )

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  • 日本熱処理技術協会2012年ドイツ視察団報告(国際視察団報告) Reviewed

    奥宮 正洋

    熱処理   53 ( 1 )   13 - 16   2013.2

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  • 第20回熱処理国際会議(The 20th IFHTSE Congress)報告(国際会議報告) Reviewed

    奥宮 正洋, 川㟢一博 ネツレン*

    熱処理   53 ( 1 )   11 - 12   2013.2

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  • Appearance of Nonequilibrium α Phase in Al-Si Based Alloy by Ultrasound Cavitation

    OKUMIYA Masahiro, KONG Jung-Hyun, TSUNEKAWA Yoshiki, TAGA Kanako

    52 ( 4 )   205 - 206   2012.8 (   ISSN:0288-0490 )

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  • Al-Si系合金における超音波キャビテーションによる非平衡α相の出現(口絵) Reviewed

    奥宮 正洋, チョンヒョン コン, 恒川 好樹, 田賀佳奈子 修士修了生、現資生堂*

    熱処理   52 ( 4 )   205 - 206   2012.8

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  • The 19th IFHTSE (International Federation for Heat Treatment and Surface Engineering) Congress (1)

    OKUMIYA Masahiro

    52 ( 1 )   18 - 19   2012.2 (   ISSN:0288-0490 )

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  • 118 Effect of Alloying Elements on Nitride Layer Formation in Aluminum Alloys by Gas Nitriding

    YOSHIDA Masashi, OKUMIYA Masahiro, UTSUMI Noah, TSUNEKAWA Yoshiki

    Materials and processing conference   2010 ( 18 )   "118 - 1"-"118-3"   2010.11

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    Language:Japanese   Publisher:The Japan Society of Mechanical Engineers  

  • Present and the Future of Surface Heat Treatment Technology

    50 ( 4 )   305 - 309   2010.8 (   ISSN:0288-0490 )

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  • Surface Heat-treatment and Processing

    KAWASAKI Kazuhiro, OKUMIYA Masahiro, UCHIDA Satoshi

    50 ( 2 )   90 - 98   2010.4 (   ISSN:0288-0490 )

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  • Effect of Native Oxide Layer on Nanoindentation Test of High Purity Aluminum

    Sumomogi Tsunetaka, Yoshida Masashi, Nakamura Masayoshi, Okumiya Masahiro

    Proceedings of JSPE Semestrial Meeting   2008 ( 0 )   907 - 908   2008

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    Publisher:The Japan Society for Precision Engineering  

    Nano-scale mechanical properties, such as hardness, yield load and Young's modulus, are obtained from nanoindentation test. However, the results of the test are considerably affected by sample surface condition, nose configuration of tip, and so on. In this study, the oxide layer thickness of 99.99% and 99.9999% aluminums exposed in air is measured using an X-ray photoelectron spectroscopy (XPS), and nanoindentation test is performed on the aluminums with the oxide layer of several thicknesses. The oxide layer thickness increases with the period exposed in air, and the layer of low purity aluminum is thicker than that of high purity aluminum. In nanoindentation test, it is revealed that the yield load and hardness are considerably affected by the oxide layer on sample surface.

    DOI: 10.11522/pscjspe.2008S.0.907.0

  • 浸炭・窒化・高周波焼入れ (特集 進化する表面改質技術とその応用) -- (最近の表面改質、及び周辺技術の進歩)

    奥宮 正洋

    特殊鋼   56 ( 5 )   5 - 8   2007.9 (   ISSN:0495-7644 )

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  • 論壇 真空熱処理技術の現状と展望及び真空熱処理技術を有効利用した「N-クエンチ」

    奥宮 正洋

    工業加熱   43 ( 6 )   3 - 8   2006.11 (   ISSN:0454-1499 )

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  • G163 Improvement of carburizing efficiency in vacuum carburizing using natural gas

    Okumiya Masahiro, Tsunekawa Yoshiki, Orita Kazuya, Hagi Satoshi, Umeda Yoshito

    Procee[d]ings of Thermal Engineering Conference   2005   307 - 308   2005.11

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    In this study the natural gas which is available from the lifeline is applied to vacuum carburizing. The gas composition inside the furnace was analyzed by the gas chromatography in order to examine the carbon infiltration mechanism. Unsaturated hydrocarbon gases are generated from the natural gas. The effect of acetylene concentration in the furnace on the carbon infiltration rate was investigated. The carbon amount which infiltrates into the steel increases, as acetylene concentration in furnace increases. The carbon concentration of specimen surface does not decrease, even if the natural gas flow decreases, because carbon atoms which are consumed for diffusion to inside are sufficiently supplied. By using this method, inhibition of soot generation, reduction of process gas and shortening of the carburizing period are possible. The carbon concentration profile of the vacuum carburized specimen was compared with the simulation.

  • Fabrication of High Strength Bonded Abrasive Wheel with Ultrasonic Composite Plating

    Materials Transactions   46 ( 9 )   2047 - 2051   2005.9 (   ISSN:1345-9678 )

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  • 天然ガス真空浸炭の実用化開発

    羽木 敏, 梅田 良人, 奥宮 正洋

    工業加熱   41 ( 4 )   29 - 35   2004.7 (   ISSN:0454-1499 )

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  • Microstructure of Plasma-Sprayed Cast Iron Splats with Different Particle Sizes

    MORKS Magdi F., TSUNEKAWA Yoshiki, OKUMIYA Masahiro, SHOEIB Madiha A.

    Materials Transactions   44 ( 4 )   743 - 748   2003.4 (   ISSN:1345-9678 )

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  • Plasma Spraying Using Water and Gas Atomized SUJ2 Powder

    UENO Teruaki, TSUNEKAWA Yoshiki, OKUMIYA Masahiro, YASHIRO Toshiaki

    75   1 - 2   2002.6

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  • Mechanical Property Improvement of Steels by the Natural-gas Enrichment Gas Carburizing Process

    OKUMIYA Masahiro, TSUNEKAWA Yoshiki, ICHINOSE Sinya, KURAHASHI Kazuhiro, TAKEBE Jiro, MAEDA Akihiko

    2002 ( 51 )   271 - 272   2002.3

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  • Reactive HVOF Thermal Spraying with Granulated SiO_2/Ni/Al-Mg Powder

    HAMANAKA I., TSUNEKAWA Y., OKUMIYA M., FUKUMOTO M., JUNG Young-Gyo

    74   53 - 54   2001.11

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  • HVOF Spraying with In-process Reaction Using Granulated SiO_2/Al-Mg Powder

    HAMANAKA I., TSUNEKAWA Y., OKUMIYA M., FUKUMOTO M., JUNG Young-Gyo

    73   13 - 14   2001.6

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  • 超音波振動を利用したマグネシウム合金の薄肉鋳造

    佐藤 哲也, 恒川 好樹, 奥宮 正洋

    鋳物 : 講演大会講演概要集   138   79 - 79   2001.4 (   ISSN:0919-6048 )

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  • 超音波振動を利用するアルミナ粒子の生成複合化

    小山 信康, 恒川 好樹, 奥宮 正洋

    鋳物 : 講演大会講演概要集   137   96 - 96   2000.9 (   ISSN:0919-6048 )

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  • マグネシウム合金の超音波援用鋳造プロセス

    佐藤 哲也, 望月 貴司, 恒川 好樹, 奥宮 正洋

    鋳物 : 講演大会講演概要集   137   97 - 97   2000.9 (   ISSN:0919-6048 )

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  • 電磁浮力による生成複合スラリの部分複合化プロセス

    杉村 恵吾, 恒川 好樹, 奥宮 正洋

    鋳物 : 講演大会講演概要集   135   63 - 63   1999.10 (   ISSN:0919-6048 )

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  • Formation of Hologram-emboss Pattern by Ultrasonic Vibration

    KONDO Yasufumi, TSUNEKAWA Yoshiki, OKUMIYA Masahiro

    68   71 - 72   1998.10

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  • Formation of TiC in Reactive RF Plasma Spraying

    KOGURE Akihiro, TSUNEKAWA Yoshiki, OKUMIYA Masahiro

    68   63 - 64   1998.10

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  • Ultrasonic Cast Joining of Aluminum Alloy Matrix Composites

    FURUKAWA Yuuichi, OKUMIYA Masahiro, TSUNEKAWA Yoshiki

    93   293 - 294   1997.10

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  • Formation of Composite Layer Containing TiC Precipitates by Electrical Discharge Alloying

    TSUNEKAWA Yoshiki, OKUMIYA Masahiro, MOHRI Naotake, KURIBE Eiji

    Materials Transactions, JIM   38 ( 7 )   630 - 635   1997.7 (   ISSN:0916-1821 )

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  • Maskingless selective electroplating by electrolyte jet

    TAKEUCHI Hiromitsu, KAWAI Yutaka, OKUMIYA Masahiro, TSUNEKAWA Yoshiki

    92   127 - 128   1997.5

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  • Incorporation of Alumina Particles with Different Shapes and Sizes into Molten Aluminum Alloy by Melt Stirring with Ultrasonic Vibration

    GENMA Yoshikazu, TSUNEKAWA Yoshiki, OKUMIYA Masahiro, MOHRI Naotake

    Materials Transactions, JIM   38 ( 3 )   232 - 239   1997.3 (   ISSN:0916-1821 )

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  • Formation of Compositionally Graded Ni-P Deposits Containing SiC Particles by Jet Electroplating

    TAKEUCHI Hiromitsu, TSUNEKAWA Yoshiki, OKUMIYA Masahiro

    Materials Transactions, JIM   38 ( 1 )   43 - 48   1997.1 (   ISSN:0916-1821 )

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  • The mechanism of particle co-deposition in jet electroplating

    TAKEUCHI Hiromitsu, KAWAI Yutaka, OKUMIYA Masahiro, TSUNEKAWA Yoshiki

    91   271 - 272   1996.11

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  • High speed selective electroplating by electrolyte jet

    KAWAI Yutaka, TAKEUCHI Hiromitsu, OKUMIYA Masahiro, TSUNEKAWA Yoshiki

    91   269 - 270   1996.11

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  • Flattening and Reaction of Sprayed Droplets in RF Plasma Spraying

    HIROMURA Makoto, OKUMIYA Masahiro, TSUNEKAWA Yoshiki

    64   27 - 28   1996.10

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  • Formation of titanium silicide matrix in situ composites by RF plasma spraying

    TANAKA Katsuya, OKUMIYA Masahiro, TSUNEKAWA Yoshiki

    62   11 - 12   1995.11

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  • Processing of SiC particle/Ni-P composite electro-deposit with gradient constituent by electrolyte jet

    TAKEUCHI Hiromitsu, TOHYAMA Masayuki, OKUMIYA Masahiro, TSUNEKAWA Yoshiki

    89   61 - 62   1995.11

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Books

  • Key Engineering Materials

    Yoshiki Tsunekawa, Masahiro Okumiya, Naotake Mohri*, H. Nakanishi*(Metal Matrix Composites)

    Trans Tech Pub.  1995.7 

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    Book type:Scholarly book

Presentations

  • Optimal shape design using response surface method to reduce heat treatment deformation International conference

    Koichiro NAMBU, Kosuke Shiraki, Masahiro OKUMIYA

    Europian Conference on Heat treatment  ( Italy Genoa )   2023.5 

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    Presentation type:Oral presentation (general)  

  • 浸窒処理されたS20C材の疲労強度におよぼす残留オーステナイトの影響 Invited

    南部紘一郎, 水谷想, 奥宮正洋

    第95回日本熱処理技術協会学術講演大会  ( 東京 )   2023.5 

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  • Al-Mg酸化物分散アルミニウム複合材料の疲労強度特性評価 International conference

    上野裕紀 材料プロセス*, 南部 紘一郎, 奥宮 正洋

    日本材料学会東海支部第14回学術講演会  ( 予稿集のみ )   2020.3  日本材料学会東海支部

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  • Control of Hydrophobic and Hydrophilic of Metallic Materials Using Surface Texturing International conference

    佐野文哉 材料プロセス*, 南部 紘一郎, 内海祐介 不二製作所*, 奥宮 正洋

    The 22nd International Symposium on Advances in Abrasive Technology  ( China )   2019.12 

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  • マグネシウム合金AZ31の諸特性におよぼすウェットブラスト処理の影響 International conference

    南部 紘一郎, 高島健汰 材料プロセス*, 熊谷勇雄 マコー(株)*, 奥宮 正洋

    第29回日本MRS年次大会  ( 横浜 )   2019.11 

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  • 異種金属材料スポット溶接継手の強度特性評価 International conference

    南部 紘一郎, 奥宮 正洋, 木村優介 材料プロセス*, 尹 己烈 岐阜大*

    2019年度材料力学カンファレンス  ( 九州大学 )   2019.11 

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  • Influence of wetblast treatment on fatigue strength of magnesium alloy AZ31 International conference

    Koichiro Nambu, Masahiro Okumiya, Kenta Takashima material processing Lab*, Isao Kumagai Machoo.co.ltd*

    International Conference on Advanced Surface Enhancement  ( Singapore )   2019.9 

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  • ショットブラスト処理材に対する3次元測定を利用した非破壊検査技術の開発 International conference

    南部 紘一郎, 佐野文哉 材料プロセス*, 内海祐介 (株)不二製作所*, 奥宮 正洋

    2019年砥粒加工学会学術講演大会  ( 埼玉 )   2019.8 

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  • ショットブラスト処理により形成された表面粗さが金属材料の撥水-親水性におよぼす影響 International conference

    南部 紘一郎, 佐野文哉 材料プロセス*, 内海祐介 (株)不二製作所*, 奥宮 正洋

    2019年度砥粒加工学会学術講演大会  ( 埼玉 )   2019.8 

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  • Effect of Barrel Nitriding on Friction and Wear Characteristics of International conference

    南部 紘一郎, 奥宮 正洋, Kazuki Sayo 元材料プロセス*

    Europian Conference on Heat treatment 2019  ( Italy )   2019.7 

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  • ウェットブラスト処理がマグネシウム合金AZ31 の疲労強度特性に及ぼす影響 International conference

    高島健汰 材料プロセス*, 南部 紘一郎, 熊谷勇雄 (株)マコー*, 奥宮 正洋

    第68期日本材料学会学術講演会  ( 室蘭工業大学 )   2019.5 

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  • Influence of processing conditions on deposit layer formation by barrel nitriding treatment on aluminum alloy International conference

    Koichiro Nambu, Masahiro Okumiya, Kazuki Sayo*

    The International Conference on Surfaces, coatings and interfaces - SurfCoat Korea 2019  ( Incheon,Korea )   2019.3 

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  • 金属材料の撥水-親水性制御におよぼす微粒子ピーニング処理表面形状の影響 International conference

    佐野文哉 材料プロセスB4*, 南部 紘一郎, 内海祐介 不二製作所*, 奥宮 正洋

    日本熱処理技術協会第9回中部支部講演会  ( 名城大学 )   2019.3 

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  • ウェットブラスト処理による組織制御を利用したMg 合金の疲労強度向上に関する研究 International conference

    高島健汰 材料プロセス学部4年*, 南部 紘一郎, 熊谷勇雄 マコー*, 奥宮 正洋

    日本材料学会東海支部第13回学術講演会  ( 名城大学 )   2019.3 

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  • 異種金属材料スポット溶接継手の強度特性評価 International conference

    木村優介 材料プロセス学部4年*, 南部 紘一郎, 尹己烈 岐阜大*, 奥宮 正洋

    日本材料学会東海支部第13回学術講演会  ( 名城大学 )   2019.3 

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  • 表面テクスチャリングを利用した金属材料の撥水ー親水性制御とその影響因子の解明 International conference

    佐野文哉 材料プロセス学部4年*, 南部 紘一郎, 内海祐介 不二製作所*, 奥宮 正洋

    2019年砥粒加工学会卒業研究発表会  ( 東京都 )   2019.2 

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  • Low distortion processes by controlled water mist quenching International conference

    Noguchi Mamoru 材料プロセス*, Koichiro Nambu, Hirai Hirokazu IHI*, Katsumata Kazuhiko IHI*, Masahiro Okumiya

    International Conference on Quenching and Distortion Engineering 2018   ( Nagoya,Aichi )   2018.11  IFHTSE

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  • Verification on possibility of nitrogen infiltration into steel by N-Quench International conference

    Nakamura Atsushi 材料プロセス*, Koichiro Nambu, Masahiro Okumiya

    Vaccum Heat Treatment and Heat treatment Tools  ( Puchov,Czech Republic )   2018.11  Association for the Heat Treatment of Metals

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  • Influence of Nitride and multiple peening on surface characteristic of AISI D2 Invited International conference

    南部 紘一郎, 奥宮 正洋, 西尾 将裕 材料プロセス*, 宮本潤示 大同大学*

    25th IFHTSE Congress  ( Xian,China )   2018.9  IFHTSE

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    Presentation type:Oral presentation (invited, special)  

  • SKD11の摩擦摩耗特性におよぼす窒化多段ピーニング処理の影響 International conference

    南部 紘一郎, 奥宮 正洋, 西尾将裕 材料プロセス*, 宮本潤示 大同大学*

    2018年度 砥粒加工学会講演大会  ( 金沢大学 )   2018.8 

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  • Influence of soft particle peening treatment on fatigue strength of aluminum alloy a5052 International conference

    Koichiro Nambu, Masahiro Okumiya

    7th Fracture, Fatigue and wear  ( Belgium )   2018.6 

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  • 水ミストを用いた制御冷却による鋼の低ひずみ化 International conference

    野口衛 材料プロセスM2*, 南部 紘一郎, 平井宏和 IHI機械システム*, 勝俣和彦 IHI機械システム*, 奥宮 正洋

    2018年春季日本熱処理技術協会講演大会  ( 東京工業大学 )   2018.5 

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  • High Temperature Plasma Nitriding and Quench on Low Carbon Steel. International conference

    Masahiro Okumiya, Koichiro Nambu, shota matsuda*, Kojiro Inaba*, Makoto Fujita*, Yoshiki Tsunekawa*, Sang Gweon Kim*

    European Conference on Heat treatment 2018  ( Germany, Friedrichshafen )   2018.4 

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  • 窒化多段ピーニングによる金型用鋼SKD11の表面特性改善 International conference

    西尾将裕*, 南部 紘一郎, 宮本潤示 **, 奥宮 正洋

    日本熱処理技術協会中部支部第8回講演会  ( 大同大学 )   2018.3 

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  • 塩浴軟窒化処理における炭素・窒素侵入機構および形成層の解析 International conference

    丸山大貴*, 南部 紘一郎, 奥宮 正洋, 熊澤利康 **

    日本熱処理技術協会中部支部第8回講演会  ( 大同大学 )   2018.3 

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  • Bonding of Dissimilar Metal by Spot Welding International conference

    Masanari Watanabe 材料プロセス*, Tsunekawa Yoshiki, Masahiro Okumiya

    The 13th Asian Foundry Congress (AFC-13)  ( Big Meeting Hall, Ta Quang Buu Library, HUST 1 Dai Co Viet, Hanoi, Vietnam )   2015.10  Asian Foundry Congress

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    Session 4: Heat, cryogenic and surface treatments

  • In-Process Low Temperature Carburizing of Hybrid Carbon Coated Die-cast Mold International conference

    Y.Takemoto 材料プロセス*, Tsunekawa Yoshiki, Masahiro Okumiya, E.Tabata TOYOTA MOTOR CORP.*, M.Kobayashi TOYOTA MOTOR CORP.*, Y.Furukawa TOYOTA MOTOR CORP.*

    The 13th Asian Foundry Congress (AFC-13)  ( Big Meeting Hall, Ta Quang Buu Library, HUST 1 Dai Co Viet, Hanoi, Vietnam )   2015.10  Asian Foundry Congress

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    Session 4: Heat, cryogenic and surface treatments

  • Semisolid Casting of Hypereutectic Al-Si-Cu Alloy with Sono-Solidified International conference

    Tsunekawa Yoshiki, S.Suetsugu*, Masahiro Okumiya, Y.Furukawa*, N.Nishikawa*, Y.Genma*

    15th International Conference on Metal Forming 2014  ( The University of Palermo, Palermo, Italy )   2014.9 

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  • Novel Microstructure Appeared in Sono-solidified Aluminum Alloys International conference

    Y.Matsubara 材料プロセス(M2)*, Tsunekawa Yoshiki, Masahiro Okumiya, Y.Furukawa*, N.Nishikawa*, Y.Genma*

    Junior Euromat 2014  ( The Swiss Tech Convention Center, Lausanne, Switzerland )   2014.7 

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  • 新しい表面高機能化熱処理プロセスへの取組みと今後の可能性 Invited International conference

    奥宮 正洋

    日本熱処理技術協会中部支部・技術講演会  ( 名城大学名駅サテライト )   2014.1  日本熱処理技術協会中部支部

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  • 浸窒処理を応用した複合熱処理による鋼の表面高機能化 Invited International conference

    奥宮 正洋

    第76回日本熱処理技術協会講演大会  ( 名城大学 )   2013.11  日本熱処理技術協会

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  • Energy Saving and Environment Preservation in Surface Heat Treatment and Novel Heat Treatment Method of N-QUENCH Invited International conference

    奥宮 正洋, 稲葉孝二郎 結城高周波*, チョンヒョン コン

    International conference on Surface Engineering <ICSE 2013>  ( Busan Korea )   2013.11 

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  • 窒素を有効利用したN-クエンチ Invited International conference

    奥宮 正洋

    第75回日本熱処理技術協会講演大会  ( 東京工業大学 )   2013.6  日本熱処理技術協会

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  • 亜共晶Al-Cu合金のソノ凝固 International conference

    松原由宣 修士1年生*, 恒川 好樹, 奥宮 正洋, 西川直樹 トヨタ自動車㈱*, 弦間喜和 トヨタ自動車㈱*

    日本鋳造工学会第162回全国講演大会  ( 山梨大学 )   2013.5  日本鋳造工学会

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  • ソノ凝固による過共晶Al-Si-Cu合金のヘテロ構造 International conference

    末次晋平 2012年度修了,現トヨタ自動車㈱*, 恒川 好樹, 奥宮 正洋, 古川雄一 トヨタ自動車㈱*

    日本鋳造工学会第162回全国講演大会  ( 山梨大学 )   2013.5  日本鋳造工学会

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  • 表面硬化熱処理の現状と今後の可能性 Invited International conference

    奥宮 正洋

    日本金属学会・鉄鋼協会東海支部特別講演会  ( 名古屋大学、名古屋市 )   2013.3  日本金属学会東海支部・日本鉄鋼協会東海支部

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  • 13Aガスを用いた直接浸炭における煤の低減 International conference

    作田敏 修士1年生*, 奥宮 正洋, チョンヒョン コン, 恒川 好樹, 山田正樹 東邦ガス*, 三浦新平 東邦ガス*, 清水誠也 東邦ガス*

    平成24年度表面技術若手研究者・技術者研究交流発表会  ( 名古屋市工業研究所,名古屋市 )   2012.12  表面技術協会中部支部

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  • 炭化・窒化による複合皮膜の形成過程に及ぼす因子の検討 International conference

    小原佑太 修士1年生*, 奥宮 正洋, 恒川 好樹, チョンヒョン コン, 外崎修司 トヨタ自動車*, 中本智章 ウメトク*

    平成24年度表面技術若手研究者・技術者研究交流発表会  ( 名古屋市工業研究所,名古屋市 )   2012.12  表面技術協会中部支部

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  • Influence of Nitrogen Infiltration into Steel by N-Quench on Mechanical Properties International conference

    Masahiro Okumiya, K. Inaba 結城高周波*, チョンヒョン コン, Yoshiki Tsunekawa

    20th Congress of International Federation for Heat Treatment and Surface Engineering  ( Beijing, China )   2012.10 

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  • Formation of AlN and Ti-Al Intermetallic Compound layer at Interface between Pure Aluminum and Pure Titanium International conference

    J. H. Kong*, Masahiro Okumiya, Yoshiki Tsunekawa, S. G. Kim KITECK*, M. Yoshida 静岡理工科大学*

    20th Congress of International Federation for Heat Treatment and Surface Engineering  ( Beijing, China )   2012.10 

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  • The Study about Multiple-layer Formation and Control of AlN and Intermetallic Compound layer between Aluminum and Steel International conference

    J. H. Kong*, Masahiro Okumiya, Yoshiki Tsunekawa, S. G. Kim KITECK*, M. Yoshida 静岡理工科大学*

    Materials Science Engineering 2012  ( ― )   2012.9 

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  • Thixoforming with Hypereutectic Al-7wt%Si Alloy Billets Containing Different Amounts of Impurity Iron International conference

    恒川 好樹, 奥宮 正洋, 本村隆寛 2009年修了(現ホンダ)*

    Metal Forming 2012  ( Krakow, Poland )   2012.9 

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  • Effect of Retained Hydrocarbon on Carbon Concentration of Steel in Direct Carburizing International conference

    Masahiro Okumiya, J. H. Kong*, H. Fujii 2011年度修了,現豊田自動織機*, M. Yoshida 静岡理工科大学*, Y. Tsunekawa*

    AES-ATEMA'2012 International Conference  ( Toronto, Ontario, Canada )   2012.8 

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  • Semisolid Die0casting of A390 Alloy through Ultrasonic Melt Treatment International conference

    末次晋平 M2*, 恒川 好樹, 奥宮 正洋

    Junior Euromat 2012  ( Switzerland )   2012.7 

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  • Improvement in Grease Decomposability by Nanoparticle Addition International conference

    S. Nojiri 修士2年生*, Masahiro Okumiya, J. H. Kong*, Y. Tsunekawa*, H. Iwamatsu 日本グリース*, K. Yuki 日本グリース*

    Junior Euromat 2012  ( Switzerland )   2012.7 

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  • The Study of AlN and Intermetallic Compound layers between Aluminum and Austenitic Stainless Steel Using Barrel Nitriding International conference

    J. H. Kong*, Masahiro Okumiya, Y. Tsunekawa*, S. G. Kim KIRECK*, M. Yoshida 静岡理工科大学*

    Coating Science International 2012  ( Netherlands )   2012.6 

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  • Effects of treating temperature and gases composition on nitrogen concentration of steel in vacuum nitriding International conference

    Masahiro Okumiya, J. H. Kong*, Y. Tsunekawa*, R. Terasaki 2007年卒業、現デンソー*

    Coating Science International 2012  ( Netherlands )   2012.6 

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  • Intermetallic Compound Coatings Formed by Reactive Suspension Ploasma Spraying with Elemental Pwders International conference

    恒川 好樹, 奥宮 正洋, 仲本恭平 2010年修了(現三菱重工業)*

    26th International Conference on Surface Modification Technology (SMT26)  ( Lyon, France )   2012.6 

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  • アルミニウムの表面窒化による高機能化 Invited International conference

    奥宮 正洋

    第73回日本熱処理技術協会講演大会討論会  ( 東京工業大学,東京都 )   2012.6  日本熱処理技術協会

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  • 天然ガスを用いた直接浸炭法における煤発生の低減 International conference

    作田敏 修士1年生*, 奥宮 正洋, 市川貴雄 東邦ガス*, 中村義弘 東邦ガス*, チョンヒョン コン, 恒川 好樹

    第73回日本熱処理技術協会講演大会  ( 東京工業大学,東京都 )   2012.6  日本熱処理技術協会

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    天然ガスを用いた直接浸炭における煤の低減法について発表を行った.

  • 新N-クエンチ法による鋼の表面硬化 International conference

    松田祥太 修士2年生*, 奥宮 正洋, 稲葉孝二郎 結城高周波*, 藤田理 アイテック*, チョンヒョン コン, 恒川 好樹

    第73回日本熱処理技術協会講演大会  ( 東京工業大学,東京都 )   2012.6  日本熱処理技術協会

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    プラズマを用いた新しいN-クエンチ法の特性について発表を行った.

  • Centrifugal Thixocasting with Ultrasonically Melt-treated Hypereutectic Al-Si Alloy Billets International conference

    Yoshiki Tsunekawa, Masahiro Okumiya, Y.Miyamoto M2(Presently Toyota Motor Corp)*

    The 70th World Foundry Congress  ( Monterrey, Nuevo Leon Mexico )   2012.4  WFC

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  • 超音波溶湯処理ビレットを用いる鉄含有Al-Si合金の半溶融鋳造 International conference

    本村隆寛*, 恒川 好樹, 奥宮 正洋

    塑性加工学会半溶融・半凝固加工分科会研究会  ( 早稲田大学, 東京都 )   2012.3  塑性加工学会半溶融・半凝固加工分科会

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  • 放電プラズマ焼結による単層メタルボンド砥石の創製 International conference

    林 義之 修士2年生*, 奥宮 正洋, チョンヒョン コン, 恒川 好樹

    第72回日本熱処理技術協会講演大会  ( 九州大学 伊都キャンパス )   2011.12  日本熱処理技術協会

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    単層砥石作製の新たなプロセスとして放電プラズマ焼結の利用を提案し、アルミニウム合金を台金とする単層メタルボンド砥石の作製について検討した。結合材を予め台金に固定させて放電プラズマ焼結を行うことで、単層の砥粒層をもつ砥石が作製可能となった。結合材にCu-Sn合金粉末のみを用いて作製した場合は、結合材に十分な密度が得られなかったが、結合材にCu-Sn/Al混合粉末を用い、さらにメカニカルアロイング粉末とすることで結合材の高密度化を実現した。

  • メタノール中における高周波浸炭焼入れによる鋼の表面改質 International conference

    小川雄大 修士2年生*, 三坂佳孝 高周波熱錬*, 川㟢一博 高周波熱錬*, 奥宮 正洋, チョンヒョン コン, 恒川 好樹

    第72回日本熱処理技術協会講演大会  ( 九州大学 伊都キャンパス )   2011.12  日本熱処理技術協会

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    メタノール中で高周波誘導加熱を行い、気化したメタノールおよびメタノールの熱分解により生じた一酸化炭素・水素により浸炭を行い,その後高周波誘導加熱を停止してアルコール中にて焼入れを行った際の処理温度,処理時間が炭素濃度プロファイル等に及ぼす影響を検討した.保持時間5分で表面の炭素濃度は1.4wt%となり、短時間でオーステナイト中の炭素固溶限に到達した。プロセスパラメータの管理によって、表面炭素濃度の制御を可能とした。

  • 水中プラズマによる鋼の表面改質 International conference

    竹田智徳 修士2年生*, 奥宮 正洋, チョンヒョン コン, 恒川 好樹

    第72回日本熱処理技術協会講演大会  ( 九州大学 伊都キャンパス )   2011.12  日本熱処理技術協会

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    真空炉ではなく水中でプラズマを発生させることで、短時間で鋼の表面を改質することを検討した。これにより、装置の小型化、および前処理にかかる時間の短縮化を目指す。試料にSCM420を用い、電解液には蒸留水に窒素の供給源として尿素、導電性の調整用に水酸化カリウムを加え,水中プラズマを発生させた.プロセスパラメータの最適化により、表面に炭素・窒素が拡散した層を形成することを可能とした。

  • 微粉末を添加した流体潤滑膜がトライボロジー特性に及ぼす影響 International conference

    野尻真太朗 修士1年生*, 奥宮 正洋, 恒川 好樹, チョンヒョン コン, 岩松宏樹 日本グリース*, 幸 賢司 日本グリース*

    平成23年度表面技術者若手研究者・技術者研究交流発表会  ( 名古屋市工業研究所 名古屋市 )   2011.11  表面技術協会中部支部

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    グリースに導電性を付与し、静電気の除去によりグリースの分解の抑制を試みた。添加剤として極圧性および高温安定性に優れた固体潤滑剤として知られる二硫化タングステンを用いることで、過酷な使用環境に耐えうる導電性グリースを開発し、その性能評価を行った。二硫化タングステンを添加すると厚いグリース膜を維持する効果がある。タングステンを添加したグリースにおいては、表面に絶縁膜が形成されていることを電位差測定より明らかにした。

  • Semi-solid Casting with Ultrasonically Melt-treated Billets of Al-7mass%Si Alloys International conference

    Yoshiki Tsunekawa, Masahiro Okumiya, Takahiro Motomura*

    11th Asian Foudry Congress  ( Ocean Hotel, Guangzhou, China )   2011.11  Foundry Institution of Chinese Mechanical Engineering Society

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  • Crystallization of Hetero-structure in Hypereutectic Al-Si Alloy through Sono-solidification International conference

    Shinpei Suetsugu*, Yoshiki Tsunekawa, Masahiro Okumiya

    4th Korea-Japan Workshop for Young Foundry Engineers  ( Gyeongju, Korea )   2011.11  Korea Foundry Society

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  • Formation of Photocatalytic Film on Titanium Substrate Using an Electrolytic jet International conference

    奥宮 正洋, チョンヒョン コン, 恒川 好樹

    IFHTSE 19th International Congress 2011  ( Scotland )   2011.10  International Federation for Heat Treatment and Surface Engineering

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  • ソノ凝固による過共晶Al-Si合金のヘテロ構造制御 International conference

    末次晋平*, 恒川 好樹, 奥宮 正洋

    2011年度軽金属学会東海支部ワークショップ  ( 名古屋大学 )   2011.10  軽金属学会東海支部

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  • Effect of Jet Electrolytic Solution on Formation of Photocatalytic International conference

    奥宮 正洋, 恒川 好樹

    AES-ATEMA’ 2011 Seventh International Conference Advances and Trends in Engineering Materials and their Applications  ( MILAN, Italy )   2011.7 

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  • The Present State and Future of Heat Treatment Invited International conference

    奥宮 正洋

    Korea-Japan EXPO  ( KINTEX (Seoul) )   2010.12  KITECH - Korea Institute of Industrial Technology

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  • メタノール中での高周波誘導加熱による鋼の高機能化 International conference

    小川雄大 修士1年*, 奥宮 正洋, 恒川 好樹

    平成22年度表面技術者若手研究者・技術者研究交流発表会  ( 名古屋市工業研究所 )   2010.12  表面技術協会中部支部

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  • 水中プラズマを用いた鋼の表面改質 International conference

    竹田智徳 修士1年*, 奥宮 正洋, 恒川 好樹

    平成22年度表面技術者若手研究者・技術者研究交流発表会  ( 名古屋市工業研究所 )   2010.12  表面技術協会中部支部

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  • 放電プラズマ焼結による単層メタルボンド砥石の創成 International conference

    林 義之 修士1年*, 奥宮 正洋, 恒川 好樹

    平成22年度表面技術者若手研究者・技術者研究交流発表会  ( 名古屋市工業研究所 )   2010.12  表面技術協会中部支部

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  • Rapid Nitriding of Titanium Alloy with Atomosphere Control International conference

    Masahiro Okumiya, Yoshiki Tsunekawa, Masatoshi Kato DUNLOP SRI*

    15th International Metallurgy & Materials Congress  ( ISTANBUL,Turkey )   2010.11 

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  • Surface Modification of Steel with High-Frequency Induction Carburizing in Methanol International conference

    Yudai Ogawa Graduate student*, Masahiro Okumiya, Yoshiki Tsunekawa

    15th International Metallurgy & Materials Congress  ( ISTANBUL,Turkey )   2010.11 

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  • Gas Carburizing by Introducing Hydrocarbon Gas Directly In Furnace International conference

    Hiroaki Fujii Graduate student*, Masahiro Okumiya, Yoshiki Tsunekawa, Yusuke Kawagoe Toho Gas Co. Ltd.*

    15th International Metallurgy & Materials Congress  ( ISTANBUL,Turkey )   2010.11 

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  • Thixocasting with Ultrasonically Treated Al-Si Alloy Billets Containing Iron as Impurity - Sono-solidification in Al-Si Alloys - Invited International conference

    Yoshiki Tsunekawa, Takahiro Motomura 現、ホンダ技研、2009年修了*, Masahiro Okumiya

    KFS Annual Autumn Meeting  ( Incheon University, Korea )   2010.11  The Korea Foundry Society

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  • Sono-solidification in Hypereutectic Al-Si Alloy Invited International conference

    Yoshiki Tsunekawa Kanako Taga 現、資生堂、2008年修了*, Yuta Fukui 現、三菱重工業、2010年修了*, Masahiro Okumiya

    ICAA12  ( Pacifico Yokohama )   2010.9 

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  • Effects of the Process Parameters in Barrel Nitriding on Surface Roughness of Aluminum Nitride Layer and Formation of Deposited Layer Masahiro International conference

    Masahiro Okumiya, Masashi Yoshida Shizuoka Institute of Science and Technology*, Yoshiki Tsunekawa, ワリド カリファ, Takeshi Ohno Undergraduate student*

    AES-ATEMA' 2010 Fifth International Conference on Advances and Trends in Engineering Materials and their Applications  ( Brixen, ITALY )   2010.7 

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  • 浸炭焼入れ、窒化の現状と将来 Invited International conference

    奥宮 正洋

    日本熱処理技術協会 創立50周年記念シンポジウム  ( 東京工業大学 )   2010.5  日本熱処理技術協会

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  • 一般熱処理の現状と将来 Invited International conference

    奥宮 正洋

    日本熱処理技術協会 創立50周年記念シンポジウム  ( 東京工業大学 )   2010.5  日本熱処理技術協会

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  • 超音波キャビテーションによるAl-18mass%Si合金での非平衡α-Al固溶体の晶出 International conference

    田賀佳奈子 現、資生堂、2008年修了*, 福井雄太 現、三菱重工業、2010年修了*, 恒川 好樹, 奥宮 正洋

    日本鋳造工学会第156回全国講演大会  ( 近畿大学 )   2010  日本鋳造工学会

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  • 超音波処理したAl-18wt%Si合金ビレットの半溶融遠心鋳造 International conference

    宮本侑典 現、トヨタ自動車、2011年修了*, 恒川 好樹, 奥宮 正洋

    日本鋳造工学会第157回全国講演大会  ( 北海道大学 )   2010  日本鋳造工学会

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  • Improvement in Wettability by Ultrasound and Its Application to Cast Joining International conference

    Yoshiki Tsunekawa, Masahiro Okumiya, Yuichi Furukawa 現、トヨタ自動車、1998年卒業*

    CIMTEC2010  ( Montecatini Terme, Italy )   2010 

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  • Crystallization of Non-equilibrium α-aluminum and Primary Silicon with Accoustic Cavitation in Hypereutectic Al-Si Alloy International conference

    Yoshiki Tsunekawa, Kanako Taga 現、資生堂、2008年修了*, Yuta Fukui 現、三菱重工業、2010年修了*, Masahiro Okumiya

    The 69th WFC  ( Hangzhou, China )   2010 

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  • 反応性サスペンション溶射によるNiAl皮膜の形成 International conference

    仲本恭平 現、三菱重工業、2011年修了*, 恒川 好樹, 奥宮 正洋

    2010年溶射合同講演大会  ( 川崎市産業振興会館 )   2010 

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Awards

  • 粉生熱技術振興賞

    2019.11   公益財団法人 谷川熱技術振興基金   熱処理技術の進歩発展に尽力し,熱技術の推進に多大な貢献をしたため.

    奥宮 正洋

  • 優秀講演賞(学術)

    2019.3   日本材料学会東海支部  

    高島健汰 材料プロセス学部4年*, 南部 紘一郎, 熊谷雄 マコー*, 奥宮 正洋

  • ベストプレゼンテーション賞

    2019.3   日本熱処理技術協会中部支部  

    佐野文哉 材料プロセスB4*, 南部 紘一郎, 内海祐介 不二製作所*, 奥宮 正洋

  • Best Presentation Paper Contest 2nd Place

    2018.11   Vacuum Heat Treatment and Heat Treatment of Tools 2018 ,IFHTSE  

    中村篤史 材料プロセス研究室*, 南部 紘一郎, 奥宮 正洋

  • 研究発表奨励賞(優秀賞)

    2018.5   一般社団法人日本熱処理技術協会  

    野口衛 材料プロセス*, 南部 紘一郎, 奥宮 正洋

  • 日本熱処理技術協会学術功績賞(林賞)

    2015.6   日本熱処理技術協会   熱処理に関する学術の発展に貢献しその功績が大きかったため。

    奥宮 正洋

  • Best Paper Award

    2015.4   International Journal of Metallurgical & Materials Science and Engineering   Vol . 5, Issue 2に掲載されたRELATION BETWEEN HEAT SOURCE AND ELECTRODE FORCE OF DISSIMILAR METAL WELDINGの論文が優秀だったため。

    CHIHIRO MATSUDA Gifu University*, KYYOUL YUN Gifu University*, J. H. Kong 材料プロセス*, SHUNJI YANASE Gifu University*, Masahiro Okumiya, IBRAHIMBIN ISHAK Gifu University*, TOSHIFUMI KAKIUCHI Gifu University*, YOSHIHIKO UEMATSU Gifu University*

  • 表面技術若手研究者・技術者研究交流発表会優秀発表賞

    2012.12   表面技術協会中部支部   平成24年度表面技術若手研究者・技術者研究交流発表会における発表が優秀であったため

    小原佑太 修士1年生*, 奥宮 正洋, 恒川 好樹, チョンヒョン コン, 外崎修司 トヨタ自動車*, 中本智章 ウメトク*

  • 日本溶射学会論文賞

    2012.6   日本溶射学会   「反応性サスペンション溶射によるNiAl皮膜の形成」の論文発表に対して

    仲本恭平*, 恒川 好樹, 奥宮 正洋

  • 日本熱処理技術協会研究発表奨励賞・最優秀賞

    2011.12   日本熱処理技術協会   講演大会での発表が優秀であったため.

    林 義之 修士2年生*, 奥宮 正洋, チョンヒョン コン, 恒川 好樹

  • 表面技術若手研究者・技術者研究交流発表会優秀発表賞

    2011.11   表面技術協会中部支部   表面技術若手研究者・技術者研究交流発表会における発表が優秀であったため.

    野尻真太朗 修士1年*, 奥宮 正洋, 恒川 好樹, チョンヒョン コン, 岩松宏樹 日本グリース*, 幸 賢司 日本グリース*

  • 日本鋳造工学会優秀論文賞

    2010   社団法人日本鋳造工学会   学会誌「鋳造工学」第81巻第10号(2009)掲載の「超音波キャビテーションによるAl-18mass%Si合金での非平衡α-Al固溶体の晶出」に対して

    田賀佳奈子 現、資生堂、2008年修了*, 福井雄太 現、三菱重工業、2010年修了*, 恒川 好樹, 奥宮 正洋

  • 日本鋳造工学会優秀論文賞

    2008   日本鋳造工学会   日本鋳造工学会誌、第79巻、第9号(2007),PP529-536 に掲載された研究論文「超音波振動を用いた鋼基材へのアルミニウム合金の溶媒被覆」に対して

    田村 賢 現、水産大学校、元PD研究員*, 石原直樹 現、豊田自動織機、2005年修了*, 恒川 好樹, 奥宮 正洋

  • 日本熱処理技術協会研究発表奨励賞優秀賞

    2007.10   社団法人日本熱処理技術協会   第65回日本熱処理技術協会講演大会にて発表した「Acoustic Emissionを用いた沸騰状態の判別」に対して

    土居清良 2007年度修士2年*, 奥宮 正洋, 恒川 好樹, 生田文昭*, 田中嘉昌 高周波熱錬*, 富田美浩 日本グリース*, 永井隆之 永井商会*

  • 平成18年度論文賞

    2007.5   日本熱処理技術協会   論文「電子ビーム励起プラズマによるアルミニウム合金の表面窒化」に対して論文賞が授与された

    奥宮 正洋, 恒川 好樹, 馬場昭弘 本学卒業生,現在:旭硝子(株)*, 田村 賢*

  • 日本熱処理技術協会論文賞

    2007   社団法人 日本熱処理技術協会   熱処理技術協会会誌「熱処理」第46巻,第2号に掲載された「電子ビーム励起プラズマによるアルミニウム合金の表面窒化」が優秀と認められたため.

    奥宮 正洋, 恒川 好樹, 馬場昭弘 現、旭硝子、2002年卒業*, 田村 賢 現、水産大学校、元PD研究員*

  • 日本鋳造工学会小林賞

    2006   日本鋳造工学会   日本鋳造工学会誌、第77巻、第11号(2005)、pp.752-758掲載の論文「超音波振動端面における液体付着現象とその鋳造プロセスへの応用」に対して。

    田村 賢 現、水産大学校、元PD研究員*, 佐藤哲也 現、関東自動車工業、2003年修了*, 恒川 好樹, 奥宮 正洋, 古川雄一 現、トヨタ自動車、1998年卒業*

  • 日本鋳造工学会論文賞

    2003   (社)日本鋳造工学会   日本鋳造工学誌,第74巻,第3号,pp.170-176(2002),『電磁浮力による生成複合スリラーの部分複合化』に対して

    恒川 好樹, 奥宮 正洋, 杉村恵吾 現、矢崎総業、2000年卒業*

  • 日本溶射学会論文賞

    2003   (社)日本溶射協会   日本溶射協会誌,第39巻,第1号,pp.1-6 (2002),『インプロセス反応を伴うSiO2/Al-Mg合金系粉末のHVOF溶射』に対して

    濱中一平 現、トヨタ自動車、2003年修了*, 恒川 好樹, 奥宮 正洋, 福本昌宏 豊橋技術科学大学*, Young-gyo Jung 豊橋技術科学大学*

  • 技術賞・粉生賞

    2001.12   社団法人 日本熱処理技術協会   熱処理設備あういは熱処理技術の開発,改良に貢献し,将来を嘱望される技術者・研究者に授与

    奥宮 正洋

  • 平成11年度日本鋳造工学会 日下賞

    1999.5   日本鋳造工学会   金属基複合材料鋳造プロセスの研究

    奥宮 正洋

  • 日本鋳造工学会論文賞

    1998   日本鋳造工学会   日本鋳造工学会誌,第69巻,第7号,pp.578~584,『発熱反応を利用した超音波渦流攪拌によるアルミナ粒子の複合化』に対して

    弦間喜和 現、トヨタ自動車、1998年博士修了*, 恒川 好樹, 奥宮 正洋, 棚田優子 1996年修了*, 毛利尚武*

  • 平成7年度永井科学技術財団学術賞

    1996.3   永井科学技術財団   プラズマ浸炭における侵入炭素濃度制御

    奥宮 正洋

  • 高温学会優秀論文賞

    1995   高温学会   反応性溶射によるクロム窒化物生成複合皮膜の創製

    恒川 好樹, 奥宮 正洋, 小林忠彦 現、住友電気工業、1994年卒業*

  • 日本鋳造工学会小林賞

    1994   日本鋳物協会   日本鋳物協会誌,65巻,3号,pp.783-788,1993,『放電融合によるダイカストアルミニウム合金へのTiC/TiAl生成複合層の形成』に対して

    恒川 好樹, 奥宮 正洋, 毛利尚武*, 小杉利彦 現、トヨタ自動車、1993年卒業*, 新美格*

  • 日本金属学会論文賞-材料プロセシング部門-

    1994   日本金属学会   Mater.Trans.JIM,Vol.34,No.1,pp.62-68,1993,『Ultrasonic Infiltration in Alumina Fiber/Molten Alumium System』に対して

    中西治通 現、トヨタ自動車、1990年修了*, 恒川 好樹, 奥宮 正洋, 毛利尚武*

  • ASM International, Best Paper Award

    1992   ASM  

    恒川 好樹, K.Goto*, 奥宮 正洋, I.Niimi*

  • ASM International Best paper Award

    1992   ASM  

    恒川 好樹, 奥宮 正洋

  • 日本鋳造工学会小林賞

    1991   日本鋳造工学会  

    澤田美一*, 奥宮 正洋, 恒川 好樹, 新美格*

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Grant-in-Aid for Scientific Research