Mg-Cu(Ag)-Gd Bulk Metallic Glass Forming Alloy: Phase Selection of Melt Crystallization
文献类型：期刊论文
| 作者 | Q. Zheng |
| 刊名 | Science of Advanced Materials
 |
| 出版日期 | 2012 |
| 卷号 | 4期号:9页码:969-977 |
| 关键词 | Metallic Glasses Intermetallics Glass Forming Ability Magnesium Alloys Solidification Path Phase Diagrams ternary-system structural model amorphous-alloys atomic packing critical size cu-al composites microstructure thermodynamics ability |
| ISSN号 | 1947-2935 |
| 中文摘要 | The solidification microstructure of the master alloys (MAs) and slowly cooled alloys (SCAs) for Mg-Cu-Gd ternary system and the best glass former in Mg-Cu-Ag-Gd quaternary system were systematically investigated. the best ternary glass former alloy, Mg61Cu28Gd11, with a critical size (D-c) of 12 mm is correlated with a eutectic reaction L -> Mg2Cu + Mg3CuGd in Mg-Cu-Gd equilibrium phase diagram. And a phase diagram was established for the studied compositions in the Mg-Cu-Gd ternary system. The glass forming ability (GFA) was dramatically improved when Cu is substituted by Ag. In Mg-Cu-Ag-Gd quaternary system, the critical size reached 27 mm for Mg59.5Cu22.9Ag6.6Gd11 and this is the largest D-c for all reported Mg-based bulk metallic glasses (BMGs). The reasons why the Mg59.5Cu22.9Ag6.6Gd11 has an extraordinary glass forming ability was explained from two aspects: stabilization of the liquid and frustration of the competing phase. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/60503]  |
| 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. Mg-Cu(Ag)-Gd Bulk Metallic Glass Forming Alloy: Phase Selection of Melt Crystallization[J]. Science of Advanced Materials,2012,4(9):969-977. |
| APA | Q. Zheng.(2012).Mg-Cu(Ag)-Gd Bulk Metallic Glass Forming Alloy: Phase Selection of Melt Crystallization.Science of Advanced Materials,4(9),969-977. |
| MLA | Q. Zheng."Mg-Cu(Ag)-Gd Bulk Metallic Glass Forming Alloy: Phase Selection of Melt Crystallization".Science of Advanced Materials 4.9(2012):969-977. |
入库方式： OAI收割
来源：金属研究所
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