2010 Fiscal Year Final Research Report
Comprehensive understanding of the energy change of hierarchic structural materials by the analogy of the probability resonance and its application to materials design
| Project/Area Number |
20360312
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Structural/Functional materials
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| Research Institution | Nagoya University |
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Principal Investigator |
MURATA Yoshinori Nagoya University, 工学研究科, 教授 (10144213)
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| Co-Investigator(Kenkyū-buntansha) |
KOYAMA Toshiyuki 名古屋工業大学, 大学院・工学研究科, 教授 (80225599)
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| Research Collaborator |
AZUMA Tukasa (株)日本製鋼所, 室蘭研究所, 所長
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| Project Period (FY) |
2008 – 2010
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| Keywords | ミクロ組織 / 耐熱鋼 / ニッケル基超合金 / フェーズフィールド法 |
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| Research Abstract |
Microstructural evolution occurring suddenly in nickel based superalloys and heat resistant steels, both of which have the hierarchic structure, was investigated by the phase-field method based on system free energies of them. In this investigation, experimental measurements such as dislocation density were also employed for estimation of the system free energies in ferritic heat resistant steels having a complicated hierarchic structure. Furthermore, the lath martensite structure similar to the real one can be constructed by the phase field simulation.
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