Research keywords (3)：
Microstructure of materials
, Micromechanics
, Mechanical properties of materials
Research theme for competitive and other funds (32)：
2022 - 2025 Unified analysis for orientation relationships of grains around triple junctions and the evaluation as a factor of microstructure
2019 - 2022 Validity of log angles (elements of logarithm of rotation matrix) to consider orientation changes in crystals
2016 - 2019 Evaluation of crystal orientations in materials using characteristic angles given by the logarithm of rotation matrix
2013 - 2016 Shape analysis of crystalline nanoparticles with superspherical approximation having physical meanings
2010 - 2015 Mechanical Properties and Deformation Mechanisms of Bulk Nanostructured Metals
2010 - 2012 Improvement of fatigue resistance in high conductivity copper alloysby microstructural control
2010 - 2012 Understanding of small particles shapes in crystalline materialswith a pseudo-polyhedral approximation
2007 - 2009 Microstructural control of high -strengthened copper alloys for post-Corson alloy
2007 - 2009 Origin of particle shape of pseudo-polyhedral precipitates in alloys
2006 - 2008 Mechanics of high-density lattice defect materials
2004 - 2006 Effects of grain-boundaries on high-temperature fracture discussed by experiments using double cylindrical bicrystals
2003 - 2005 High strength and high conductivity nanoparticle-precipitated copper ally : optimizaiton of thermomechanical processing
2002 - 2003 Strengthening of materials caused by dispersion of doughnut-like second phase
2001 - 2003 Construction of Dislocation Structure Diagrams for Life Assessment of Materials
2000 - 2001 Analysis on mechanical states and stable shapes of coherent precipitates in elastically anisotropic materials with a superellipsoidal approximation
1998 - 1999 Effects of grain-boundary liquid particles on fracture of a copper bicrystal
1995 - 1997 High-Temperature Deformation and Diffusional Relaxation of Particle-Dispersion Hardened Alloys
1996 - 1996 粒界上に液相粒子を含むバイおよびトライ・クリスタルの高温変形挙動
1995 - 1996 Superelastic-superplastic powder-metallurgy NiTi shape memory alloy made by meso-scale particles
1993 - 1993 オーステナイト・フェライト二相ステンレス鋼双結晶の界面構造と機械的性質
1991 - 1993 Study on deformation and fracture behavior of tuicrystals and its application to design of grain boundaries in polycrystals
1992 - 1992 液体粒子により強化された合金の高温変形と破壊
1990 - 1990 液相エピタキシーで作られる立方晶/六方晶型異相界面における方位関係
1989 - 1989 電子計算機援用による結晶および粒界の迅速高精度自動方位解析システムの開発
1989 - 1989 方位制御された銅双結晶と三重結晶における粒界移動の挙動
1988 - 1988 銅の粒界分岐におよぼす粒界エネルギーの影響
Roles of Grain Boundaries in Polycrystalline Materials
Fracture of Materials at High Temperatures
Diffusional Relaxation in Dispersion-hardened Materials
多結晶材料における結晶粒界の役割
高温域での材料の破壊
分散強化材における拡散緩和
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Papers (141)：
Takehiro Abe, Naoki Miyazawa, Susumu Onaka. Occurrence of {332}⟨113̅⟩ deformation twinning in a single crystal of an Fe-3mass%Al alloy. Philosophical Magazine. 2023. 103. 20. 1897-1910
Susumu Onaka. Arrangements of three to six cubes with maximum disorientation angles. Philosophical Magazine. 2020. 100. 13. 1703-1715
Role of Dislocations Emitted from Grain Boundaries on Plastic Deformation of Ultrafine-grained Materials
(13th International Conference on Intergranular and Interphase Boundaries in Materials 2010)
Effects of Si Addition on Mechanical Properties of Copper Severely Deformed by Accumulative Roll-Bonding
(13th International Conference on Intergranular and Interphase Boundaries in Materials 2010)
Shape and Elastic State of Nano-sized Ag Precipitates in a Cu-Ag Single Crystal
(13th International Conference on Intergranular and Interphase Boundaries in Materials 2010)
Cu母相中におけるFe-Co粒子の成長に及ぼす外部磁場効果
(2010)
Role of Dislocations Emitted from Grain Boundaries on Plastic Deformation of Ultrafine-grained Materials
(13th International Conference on Intergranular and Interphase Boundaries in Materials 2010)
