1998 Fiscal Year Final Research Report Summary
Towards Innovation in Superplasticity
| Project/Area Number |
08242102
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas (A)
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| Allocation Type | Single-year Grants |
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| Research Institution | The University of Tokyo |
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Principal Investigator |
SAKUMA Taketo Graduate School of Frontier Sci., The University of Tokyo, Prof., 大学院・新領域創成科学研究科, 教授 (50005500)
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| Co-Investigator(Kenkyū-buntansha) |
MURAKAMI Sumio Nagoya Univ., Graduate School of Eng., Prof., 大学院・工学研究科, 教授 (10023053)
UMAKOSHI Yukichi Osaka Univ., School of Eng., Prof., 工学部, 教授 (00029216)
MAKI Tadashi Kyoto Univ., Dept. of Mater. Sci. and Eng., Prof., 大学院・工学系研究科, 教授 (10026247)
WATANABE Tadao Tohoku Univ., School of Eng., Prof., 工学研究科, 教授 (40005327)
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| Project Period (FY) |
1996 – 1999
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| Keywords | superplasticity / grain boundary plasticity / grain boundary / ceramics / nano-crystal material / non-equilibrium naterial / composite |
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| Research Abstract |
The project "Towards Innovation in superplasticity" aims to examine superplastic phenomena in various new materials such as nano-crystalline material, non-equilibrium material, composite and fine-ceramic material. This project also aims to establish a new theoretical framework for the uniform description of superplastic behavior in terms of grain boundary plasticity. During the research term from 1996 to 1998, we succeed in revealing role of grain boundary for the superplasticity, establishing the mechanisms of superplastic deformation and also in developing new industrial technology for superplastic forming. We organize or make a key role in several conference and meetings, such as International Conference on "Towards Innovation in Superplasticity I and II" or International Conference on Superplasticity in Advanced Materials (ICSAM-97). The meetings were highly successful by the participation of many active scientists from abroad, and our approach is no doubt one of the most effective ways to break through the present situation in superplastic research. Prof. Sakuma, the head investigator of the present project, was elected to be a chairman of international advisory board in ICSAM in 1998. Several symposiums or special session in superplasticity were held at annual conference of Japan Institute of Metals, The Japan Society of Mechanical Engineers or The Japan Society for Strength and Fracture.
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