Experimental determination and thermodynamic modeling of phase equilibria in the Cu-Cr system
文献类型：期刊论文
| 作者 | Z. M. Zhou ; J. Gao ; F. Li ; Y. P. Wang ; M. Kolbe |
| 刊名 | Journal of Materials Science
 |
| 出版日期 | 2011 |
| 卷号 | 46期号:21页码:7039-7045 |
| 关键词 | liquidus temperatures nb alloys chromium |
| ISSN号 | 0022-2461 |
| 中文摘要 | Liquidus temperatures in the Cu-Cr system at compositions of 10.0-72.7 at.% Cr were determined using electromagnetic levitation melting. The present data agree with the prediction of a recent thermodynamic study of the system for compositions up to 20.0 at.% Cr. However, they show large and positive deviations for other compositions. Microscopic studies reveal that compositions between 10.0 and 50.5 at.% Cr solidified into a dendritic microstructure, whereas those between 55.9 and 72.7 at.% Cr solidified into a droplet-shaped microstructure. The microstructure of the latter type provides direct evidence for the existence of a stable miscibility gap over Cr-rich compositions. Phase equilibria in the Cu-Cr system were calculated using the CALPHAD method. A novel phase diagram was proposed for the Cu-Cr system, which shows a monotectic reaction between compositions of 50.8 and 83.2 at.% Cr at an invariant temperature of 2020 +/- 22 K. The novel phase diagram has reduced the discrepancies between the literature data. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/30991]  |
| 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 | Z. M. Zhou,J. Gao,F. Li,et al. Experimental determination and thermodynamic modeling of phase equilibria in the Cu-Cr system[J]. Journal of Materials Science,2011,46(21):7039-7045. |
| APA | Z. M. Zhou,J. Gao,F. Li,Y. P. Wang,&M. Kolbe.(2011).Experimental determination and thermodynamic modeling of phase equilibria in the Cu-Cr system.Journal of Materials Science,46(21),7039-7045. |
| MLA | Z. M. Zhou,et al."Experimental determination and thermodynamic modeling of phase equilibria in the Cu-Cr system".Journal of Materials Science 46.21(2011):7039-7045. |
入库方式： OAI收割
来源：金属研究所
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