Mitsuhara Masatoshi

Research field (1)： Structural and functional materials

Research theme for competitive and other funds (32)：

2023 - 2027 Characteristic control based on quantitative evaluation of nano-defect and defect-induced strain field in functional materials
2022 - 2025 Establishment of Guiding Principles for Elucidation of Cooperative Deformation Mechanism and Improving Ductility in Titanium Alloys
2022 - 2025 材料組織からのトライボロジー・エンジニアリング: 濡れる材料表面設計
2020 - 2023 フェライト系耐熱鋼溶接部の局所クリープ特性評価と組織改質による強度低減の抑制
2019 - 2023 界面ダイナミクスの評価と制御による革新的機能材料の創製

2019 - 2022 Investigation of the strain redistribution mechanism in titanium alloys using image-based crystal plasticity analysis

2019 - 2022 界面ダイナミクスの評価と制御による革新的機能材料の創製

2018 - 2021 Elucidation of subgrain boundary strengthening mechanism at high temperature

2019 - 2021 イメージベース結晶塑性解析を用いたチタン合金のひずみの再分配機構の解明

2017 - 2020 High temperature strengthening design based on growth mechanism of grain boundary carbides in high-Cr ferritic heat-resistant steels

2018 - 2020 高温における亜粒界強化機構の解明

2015 - 2020 「鋼材/潤滑油」界面における機能性ヘテロナノ構造制御に基づく転動疲労高特性化のための指導原理の確立

2017 - 2019 Heterogeneity of dislocation substructure in polycrystalline metals and its influence on mechanical properties

2017 - 2019 Synthesis of multilayer hexagonal boron nitride as the platform of two-dimensional devices

2015 - 2017 Development and expansion of scanning electron microscopy technique for wide area and high resolution magnetic imaging

2014 - 2017 Ultramicroscopy study of formation dynamics and three dimensional structure of thermoelastic martensitic phase

2014 - 2016 Synergistic creep strengthening mechanism by dislocations and precipitates in ferritic heat-resistant steels

2013 - 2016 Development of basic technology for achievement of metal source/drain Ge-CMOS device

2013 - 2016 Development of electron tomography methods for microstructural analysis in crystalline materials

2015 - 2016 熱弾性・非熱弾性マルテンサイト変態の理論拡張と新機能特性の可能性

2012 - 2015 Control of oriented textures for anisotropic Nd-Fe-B hard magnetic materials based on real-dimensional ultra-microscopy analysis

2015 - 2015 ナノ組織高温型形状記憶合金の構造解析と高機能化に向けた材料設計

2012 - 2014 Creep strengthening and weakening mechanisms by martensite lath in high Cr ferritic heat-resistant steel

2011 - 2014 Multi-scale analysis of omega transformation using novel microscopy techniques

2011 - 2012 3次元転位組織解析による固溶強化の定量測定

2010 - 2012 Development ofhigh-angle triple-axis specimen holders for spherical aberration-corrected electron microscopes

2009 - 2011 Search and Control of optimal grain boundary structure in NdFeB magnetic materials by novel electron microscopy technique

2007 - 2011 フェライト系耐熱鋼の局所方位解析と新組織診断技術データベースの構築

2009 - 2010 高機能薄膜デバイス開発のための形状記憶アクティブ歪制御基板の創製

2008 - 2010 Analysis of unsolved phenomena and development of new function in Ti-Ni shape memory alloy

2007 - 2009 Development of Ultra Low Strain Rate Creep Testing Method and Creep Life Assessment of Heat Resistant Structural Materials

2006 - 2008 Development of a three-dimensional transmission electron microscopy method based on electron diffraction and its application to nanostructural characterization in crystalline materials

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Papers (158)：

Wenyuan Wang, Yifan Xu, Misaki Deguchi, Naoki Takata, Asuka Suzuki, Makoto Kobashi, Masaki Kato, Masatoshi Mitsuhara, Hideharu Nakashima. Thermal stability of refined Al6(Fe, Mn) phase formed in laser powder bed fusion process. Journal of Alloys and Compounds. 2024. 992
Shizhe Deng, Atsushi Kubo, Yoshikazu Todaka, Yoshinori Shiihara, Masatoshi Mitsuhara, Yoshitaka Umeno. Oil Film Formation and Delamination Process on Nanostructured Surfaces in Boundary Lubrication: A Coarse-Grained Molecular Dynamics Study. Journal of Tribology. 2024. 146. 7
Shizhe Deng, Atsushi Kubo, Yoshikazu Todaka, Yoshinori Shiihara, Masatoshi Mitsuhara, Yoshitaka Umeno. Coarse-Grained Molecular Dynamics Simulations of Nanoscale Roughness Effects on Oil Film Delamination. Tribology Letters. 2024. 72. 3
Katsuhiro Sato, Masatoshi Mitsuhara, Kodai Nagata, Keiji Kubushiro, Kyohei Nomura, Takahiro Kimura, Yoshiki Shioda, Kota Sawada, Kazuhiro Kimura, Hideharu Nakashima. Effect of impurity elements on the creep rupture strength of Gr. 91 steel welded joints at 650 °C. Materials Science and Engineering: A. 2024. 903
Yoshiki Kawano, Tsuyoshi Mayama, Masatoshi Mitsuhara. Formation of plate-like high-strain region in polycrystalline α-titanium and its relation to high-strain bands on surface. Materials Today Communications. 2024. 39

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MISC (123)：

徳納一成, 光原昌寿, 萩野将広. Early-Stage Dislocation Structures inside the Dislocation Channels of Face-Centered-Cubic Metals with Point Defect Clusters. 日本金属学会誌(Web). 2023. 87. 3
Kazushige Tokuno, Masatoshi Mitsuhara, Masahiro Hagino. Early-Stage Dislocation Structures inside the Dislocation Channels of Face-Centered-Cubic Metals with Point Defect Clusters. Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals. 2023. 87. 3. 67-80
光原昌寿, 山崎重人, 安藤大輔. Microstructural Observation and Wrought Processing Optimization for Kinking in LPSO Type Mg Alloy. まてりあ. 2022. 61. 9
井原史朗, 斉藤光, 趙一方, 鯉池卓, 仲間陸人, 義永瑞雲, 光原昌寿, 波多聰, 村山光宏. Application of STEM observation aided by Machine Learning-based noise filtering. 日本機械学会計算力学講演会論文集(CD-ROM). 2021. 34th
光原昌寿. 研究のセレンディピティ、百の思案と一つの文章. 2020

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Patents (4)：

Books (4)：

表面分析ハンドブック 3.4 後方散乱電子回折法
朝倉書店 2021
新版鉄鋼材料と合金元素, 応用編33章
日本鉄鋼協会 2015
第5版鉄鋼便覧第3巻 21章 1-2節
日本鉄鋼協会 2014
第5版鉄鋼便覧第3巻 35章 5節
日本鉄鋼協会 2014

Lectures and oral presentations (318)：

Experimental aspects of kink and pre-kink formation process in Mg-Zn-Y alloy with LPSO phase
(The 12th International Conference on Magnesium Alloys and their Applications (Mg 2021) 2021)
Evaluation of residual strain distributions around ridge-type kinks in a single-phase Mg-6at%Zn-9at%Y alloy by synchrotron X-ray radiation
(The 12th International Conference on Magnesium Alloys and their Applications (Mg 2021) 2021)
超硬合金における WC/WC界面密着力評価
(粉体粉末冶金協会20201年度春季大会 2021)
放射光X線CTによるLPSO単相合金に形成されたキンクの3次元可視化
(軽金属学会第140回春期大会 2021)
LPSO単相Mg-Zn-Y合金のキンク形成とキンク強化に関する実験的検証
(軽金属学会第140回春期大会 2021)

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Committee career (18)：

2021/04 - 2023/04 日本金属学会講演大会委員
2021/04 - 2022/03 九州大学工学部・融合基礎工学科教務委員
2020/04 - 2022/03 九州大学超顕微解析研究センター専門委員
2020/03 - 2022/03 九州大学九州大学未来創成科学者育成プロジェクト(QFCーSP)実施委員会委員
2021/03 - 2022/02 日本学術振興会耐熱金属材料第123委員会耐熱鋼分科会主査

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Awards (18)：

2024/03 - 日本金属学会功績賞
2021/03 - 日本鉄鋼協会西山記念賞
2019/09 - 新学術領域「ミルフィーユ構造の材料科学」発表優秀賞
2019/03 - 新学術領域「ミルフィーユ構造の材料科学」発表優秀賞
2019/03 - 日本鉄鋼協会俵論文賞

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Association Membership(s) (5)：

The Iron and Steel Institute of Japan , 軽金属学会 , The Society of Materials Science , The Japanese Society of Microscopy , The Japan Institute of Metals

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