Mikami Yoshiki

ミカミヨシキ | Mikami Yoshiki

Affiliation and department：
Job title： Professor

Research field (3)： Material fabrication and microstructure control , Structural and seismic engineering , Machine materials and mechanics

Research keywords (2)： Welding Mechanics , Welding and Joining

Research theme for competitive and other funds (7)：

2019 - 2023 地震・波浪影響を高精度予知可能な繰返し予歪損傷考慮型CTOD破壊評価標準法の創成
2019 - 2022 Evaluation of Hydrogen Cracking at Microscopic Scale Considering Localized Distribution of Stress, Strain, and Diffusible Hydrogen
2016 - 2019 Microscopic critical condition of hydrogen induced cracking based on hydrogen diffusion analysis at microscopic scale in dual phase steel
2012 - 2015 Measurement of Microscopic Stress and Strain Distribution at Sub-grain Scale Considering Crystalline Anisotropy
2011 - 2013 Measurement of Microscopic Residual Stress by Using Indentation Method

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Papers (207)：

Takumi Ozawa, Tomoya Kawabata, Yoshiki Mikami. Proposal of New Decision Method for Temperature Control Time in Fracture Toughness Test. ISIJ International. 2023
Takumi Ozawa, Tomoya Kawabata, Yoshiki Mikami. Improvement of local compression condition for fracture toughness test with Bayesian optimization. Welding in the World. 2023. 67. 2315-2322
Hajime Yamamoto, Yuji Yamamoto, Kazuhiro Ito, Yoshiki Mikami. Adapted to generate compressive residual stress and retained austenite in a steel surface layer by friction stir processing with the WC tool. IIW-XI-L, Annual Assembly 2023. 2023. E2
Takumi Ozawa, Hiroaki Kosuge, Tomoya Kawabata, Yoshiki Mikami. Local compression process avoiding toughness change. Welding in the World. 2023. 67. 3. 607-615
Mitsuyoshi Nakatani, Mitsuru Ohata, Hiroshi Shimanuki, Ninshu Ma, Yoshiki Mikami, Masakazu Shibahara, Shigetaka Okano, Kazuki Ikushima, Hiroto Shoji. Technical Commission on Welded Structure. Yosetsu Gakkai Shi/Journal of the Japan Welding Society. 2023. 92. 5. 334-345

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MISC (153)：

Hajime Yamamoto, Yuji Yamamoto, Kazuhiro Ito, Yoshiki Mikami. Alloying of low-carbon steel surface due to friction stir processing with WC tool wear. The 3rd Materials Research Meeting (MRM2023) / The 24th IUMRS-International Conference in Asia (IUMRS-ICA2023), 京都. 2023
植村幹太, Hong Seong Min, 三上欣希, 伊藤和博, 德永仁寿, 富士本博紀. 高炭素鋼薄板の端部レーザ溶接における凝固割れに関する数値シミュレーション. 2023年度秋季全国大会, 茨城県つくば市. 2023
洪聖旻, 植村幹太, 三上欣希, 德永仁寿, 富士本博紀, 伊藤和博. Effect of Offset Distance on the Solidification Crack Initiation in the Carbon Steel Plate for the Melt-run Laser Welding. 2023年度秋季全国大会, 富山県富山市. 2023
Yoshiki Mikami, Takumi Ozawa, Tomoya Kawabata. Simulation of Weld Residual Stress Distribution in Fracture Toughness Specimen and Its Experimental Validation. 76th IIW Annual Assembly and International Conference, Singapore. 2023
Hajime Yamamoto, Yuji Yamamoto, Kazuhiro Ito, Yoshiki Mikami. Adapted to generate compressive residual stress and retained austenite in a steel surface layer by friction stir processing with the WC tool. The 76th IIW Annual Assembly and International Conference on Welding and Joining, Singapore. 2023

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Books (9)：

3.3 微視的応力場によるSCC発生特性評価(第I編溶接冶金現象のコンピュータ・シミュレーション / 第3章特性予測シミュレーション)
一般社団法人溶接学会溶接冶金研究委員会 2016
4.2.2.3 溶接部の応力分布を考慮した水素拡散集積解析(第I編溶接冶金現象のコンピュータ・シミュレーション / 第4章溶接割れシミュレーション)
一般社団法人溶接学会溶接冶金研究委員会 2016
2.4 EBSDによる微視的応力・ひずみ測定(第II編溶接冶金現象の可視化 / 第2章電子線後方散乱回折(EBSD)分析)
一般社団法人溶接学会溶接冶金研究委員会 2016
3.3 微視的応力場によるSCC発生特性評価(第I編溶接冶金現象のコンピュータ・シミュレーション / 第3章特性予測シミュレーション)
一般社団法人溶接学会溶接冶金研究委員会 2016
4.2.2.3 溶接部の応力分布を考慮した水素拡散集積解析(第I編溶接冶金現象のコンピュータ・シミュレーション / 第4章溶接割れシミュレーション)
一般社団法人溶接学会溶接冶金研究委員会 2016

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Lectures and oral presentations (9)：

水素割れ評価に向けた材料組織レベルの応力および水素濃度分布の評価
(一般社団法人軽金属学会アルミニウム中の水素と材料物性研究部会 2022)
応力および水素濃度の微視的分布に基づく二相ステンレス鋼溶接金属の水素割れ発生特性の検討
(2022年度第4回特殊材料溶接研究委員会本委員会 2022)
二相ステンレス鋼の水素割れ発生特性に関する微視組織レベルの応力および拡散性水素濃度分布に基づく考察
(一般社団法人日本溶接協会 2019年度第3回(通算第293回)化学機械溶接研究委員会 2019)
溶接部破壊靱性試験手法の高度化に向けた残留応力シミュレーションの応用
(ベトナム溶接研究会ホーチミンセミナー 2019)
溶接・接合にともなう材料・力学挙動を考慮した継手性能評価
(大阪大学接合科学研究所第16回産学連携シンポジウム 2019)

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Education (3)：

2004 - 2006 Osaka University Graduate School of Engineering Division of Materials and Manufacturing Science
2002 - 2004 Osaka University Graduate School of Engineering Department of Manufacturing Science
1998 - 2002 Osaka University School of Engineering Department of Mechanical, Materials and Manufacturing Science

Professional career (3)：

PhD in Engineering (Osaka University)
修士(工学) (大阪大学)
学士(工学) (大阪大学)

Work history (6)：

2021/10 - 現在 Osaka University Joining and Welding Research Institute Professor
2017/04 - 2021/09 Osaka University Joining and Welding Research Institute Associate Professor
2016/06 - 2017/03 Osaka University Division of Materials and Manufacturing Science, Graduate School of Engineering Associate Professor
2008/04 - 2016/05 Osaka University Division of Materials and Manufacturing Science, Graduate School of Engineering Assistant Professor
2007/04 - 2008/03 Osaka University Pipeline Engineering Joint Research Chair, Graduate School of Engineering, Specially Appointed Assistant Professor

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Awards (13)：

2022/09 - ASTM International Jounal of Testing and Evaluation Best Paper Award
2021/06 - (一社)溶接学会関西支部支部長特別賞
2019/11 - International Symposium on Creation of Life Innovation Materials for Interdiscriplinary and International Researcher Development Satellite (iLIM-s) Excellent Presentation Award
2018/11 - 大阪大学大阪大学賞(若手教員部門)
2017/12 - (一社)溶接学会平成29年度溶接学会優秀研究発表賞

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Association Membership(s) (5)：

The Iron and Steel Institute of Japan , Japanese Society of Steel Construction , Japan Society of Civil Engineers , The Japan Society of Mechanical Engineers , Japan Welding Society

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