Microscopic phase-field simulation of atom substitution behaviour in Ni-Cr-Al alloy

被引：0
|
作者：
Chu, Z [1 ]
Chen, Z [1 ]
Wang, YX [1 ]
Lu, YL [1 ]
Zhang, JJ [1 ]
机构：
[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2005年 / 22卷 / 08期
关键词：
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Simulations are performed on atom substitution behaviour in Ni75Al25-xCrx. alloys based on a microscopic phase-field model at 873K. The ordering of both the Al and Cr atoms takes place simultaneously, Cr occupies both the Al and Ni sites with a preference for the Al sites, and Cr and Al atoms together occupy the beta-sites, and the complex gamma' Ni-3(Al1-xCrx) (L1(2) structure) phases are formed during the precipitation. At the ordering boundary of L1(2) phases, Cr atoms occupy the Al sites, then Ni3Cr phases are formed.
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页码：1841 / 1844
页数：4
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