The [100]dislocation in L12 ordered alloys

被引：7
|
作者：
Schoeck, G [1 ]
机构：
[1] Univ Vienna, Inst Mat Sci, A-1090 Vienna, Austria
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1998年 / 241卷 / 1-2期
关键词：
dislocation core structure; L1(2) alloys;
D O I：
10.1016/S0921-5093(97)00459-0
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The core structure of a [100] dislocation in Ni3Al is studied within the framework of the generalized Peierls model. It is shown for a 45 degrees dislocation that for specific energies of unstable stacking gamma(0) less than or equal to 2 J m(-2) the dissociation a[100]double right arrow a/2[101]+a/2[10 (1) over bar] will not occur and within a reasonable range of gamma(0) above 2 J m(-2) never takes place completely. (C) 1998 Elsevier Science S.A.
引用
收藏
页码：14 / 18
页数：5
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