2012 Fiscal Year Final Research Report
Intrinsic nanoscale inhomonegeity in metallic glass and its relation to mechanical properties
| Project/Area Number |
22360263
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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 |
Physical properties of metals
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| Research Institution | Tohoku University |
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Principal Investigator |
KATO Hidemi 東北大学, 金属材料研究所, 准教授 (80323096)
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| Co-Investigator(Kenkyū-buntansha) |
WADA Takeshi 東北大学, 金属材料研究所, 助教 (10431602)
ICHITSUBO Tetsu 京都大学, 大学院・工学研究科, 准教授 (40324826)
ABE Eiji 東京大学, 大学院・工学系研究科, 准教授 (70354222)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 金属ガラス / 緩和 / ガラス遷移 / 内部摩擦 / 力学物性 |
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| Research Abstract |
Strong relationship among fragility (= temperature dependence of viscosity in supercooled liquid state, magnitude of the slow beta relaxation and nanoscale inhomogeneity in metallic glasses is confirmed by investigating relaxation behavior of Pd- and Zr-based alloys. By HAADF-STEM observation, it is newly found that Ar atom can be frozen in weakly bonded region of metallic glass by low energy Ar ion implantation. By analyzing dependence of size and distribution of the frozen Ar nanoparticles on the alloy system and thermal history, we can understand the nanoscale inhomogeneity in metallic glass more clearly.
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Research Products
(34 results)
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[Journal Article] A, Enhance the thermal stability and glass forming ability of Al-based metallic glass by Caminor-alloying2012
Author(s)
Wang, JQ; Liu, YH; Imhoff, S; Chen, N; Louzguine-Luzgin, DV; Takeuchi, A; Chen, MW; Kato, H; Perepezko, JH; Inoue
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Journal Title
INTERMETALLICS
Volume: Vol.29
Pages: 35-40
DOI
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[Journal Article] A partial structure factor investigation of thebulk metallic glass Zr63Ni25Al12 as studied by using a combination of anomalous X-ray scattering and reverse Monte Carlo modeling2012
Author(s)
Hosokawa, S; Berar, JF; Boudet, N; Kohara, S; Pilgrim, WC; Joester, M; Stellhorn, J; Zeidler, A; Maruyama, K; Nasu, T; Zhang, W; Kato, H
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Journal Title
INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
Volume: Vol.103
Pages: 1108-1112
DOI
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