High glass-forming ability correlated with fragility of Mg-Cu(Ag)-Gd alloys
文献类型：期刊论文
| 作者 | Q. Zheng ; J. Xu ; E. Ma |
| 刊名 | Journal of Applied Physics
 |
| 出版日期 | 2007 |
| 卷号 | 102期号:11 |
| 关键词 | bulk-metallic-glass medium-range order mg-cu-y supercooled liquids thermal-stability viscous-flow cooling rate crystallization viscosity temperature |
| ISSN号 | 0021-8979 |
| 中文摘要 | We report bulk metallic glasses with critical diameter (D(c)) in the 20-27 mm range over a relatively wide composition range in the Mg-Cu-Ag-Gd quaternary system. Such an extraordinary glass-forming ability is correlated with the relatively strong liquid behavior of these alloys in terms of Angell's [Science 267, 1924 (1995)] fragility concept. The relaxation time of the ternary Mg(61)Cu(28)Gd(11) and quaternary Mg(59.5)Cu(22.9)Ag(6.6)Gd(11) alloys was measured. In terms of the fragility parameter D(*), the Mg(59.5)Cu(22.9)Ag(6.6)Gd(11) alloy with a critical diameter of 27 mm under copper mold casting has a D(*) of 25, higher than all the bulk metallic glass-forming alloys reported so far. The implications of these findings are discussed. (c) 2007 American Institute of Physics. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34086]  |
| 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 | Q. Zheng,J. Xu,E. Ma. High glass-forming ability correlated with fragility of Mg-Cu(Ag)-Gd alloys[J]. Journal of Applied Physics,2007,102(11). |
| APA | Q. Zheng,J. Xu,&E. Ma.(2007).High glass-forming ability correlated with fragility of Mg-Cu(Ag)-Gd alloys.Journal of Applied Physics,102(11). |
| MLA | Q. Zheng,et al."High glass-forming ability correlated with fragility of Mg-Cu(Ag)-Gd alloys".Journal of Applied Physics 102.11(2007). |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。