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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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥20,280,000 (Direct Cost: ¥15,600,000、Indirect Cost: ¥4,680,000)
Fiscal Year 2009: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2008: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2007: ¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
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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 / バルク金属ガラス / ガラス形成能 / 局所構造 / 塑性変形能 / 動的構造変化 / 微細構造変化 / 構造緩和 / 核生成制御 / 塑性変形 / 不均質構造 |
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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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Report
(4 results)
Research Products
(29 results)
