2009 Fiscal Year Final Research Report
Synthesis and dynamic nano structure change in metallic glasses with stable inhomogeneous local structure
| Project/Area Number |
19360309
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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 | Tohoku University |
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Principal Investigator |
SAIDA Junji Tohoku University, 学際科学国際高等研究センター, 准教授 (20359540)
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| Co-Investigator(Kenkyū-buntansha) |
KATO Hidemi 東北大学, 金属材料研究所, 准教授 (80323096)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 金属ガラス / 微細構造 / 核生成 / 機械的性質 / 相変態 |
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| Research Abstract |
We observed that the nucleation mode in supercooled liquid can be controlled by changing atmosphere in the Cu mold casting technique. Zr-based bulk metallic glasses containing Pd or Nb exhibit a good plasticity. It is due to the deformation-induced dynamic nanostructure change. We also investigated that the synergy effect of dynamic nanostructure change and glassy structure control is very important on the improvement of mechanical properties such as plasticity in metallic glasses.
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