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Fluctuation electron microscopy of Al-based metallic glasses: effects of minor alloying addition and structural relaxation on medium-range structural homogeneity
文献类型：期刊论文
| 作者 | J. Wen ; H. W. Yang ; H. Guo ; B. Wu ; M. L. Sui ; J. Q. Wang ; E. Ma |
| 刊名 | Journal of Physics-Condensed Matter
 |
| 出版日期 | 2007 |
| 卷号 | 19期号:45 |
| 关键词 | supercooled liquid region disordered materials order behavior crystallization systems |
| ISSN号 | 0953-8984 |
| 中文摘要 | Al-based metallic glasses with relatively high glass-forming ability have been studied using fluctuation electron microscopy (FEM). These glasses exhibited well-defined glass transition and remained fully amorphous throughout the FEM experiments. Peaks were observed in the normalized intensity variance curves, evolving with sample composition and thermal history, while diffraction patterns remained identical. Specifically, minor alloying of Co into the Al85Ni5Y10 glass improved its medium-range homogeneity. This is in accord with, and partly explains, the increase in the glass-forming ability. After annealing of Al85Ni5Y8Co2 below its glass transition temperature, FEM suggests structural homogenization or intensified medium-range fluctuations, depending on the annealing temperature. Such dissolution versus growth of quenched-in heterogeneity accompanying structural relaxation was not detectable using other techniques. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33899]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | J. Wen,H. W. Yang,H. Guo,et al. Fluctuation electron microscopy of Al-based metallic glasses: effects of minor alloying addition and structural relaxation on medium-range structural homogeneity[J]. Journal of Physics-Condensed Matter,2007,19(45). |
| APA | J. Wen.,H. W. Yang.,H. Guo.,B. Wu.,M. L. Sui.,...&E. Ma.(2007).Fluctuation electron microscopy of Al-based metallic glasses: effects of minor alloying addition and structural relaxation on medium-range structural homogeneity.Journal of Physics-Condensed Matter,19(45). |
| MLA | J. Wen,et al."Fluctuation electron microscopy of Al-based metallic glasses: effects of minor alloying addition and structural relaxation on medium-range structural homogeneity".Journal of Physics-Condensed Matter 19.45(2007). |
入库方式： OAI收割
来源：金属研究所
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