Relation between grain boundary segregation and grain boundary character in FCC alloys

被引：39
|
作者：
Wynblatt, P [1 ]
Shi, Z [1 ]
机构：
[1] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA
来源：
JOURNAL OF MATERIALS SCIENCE | 2005年 / 40卷 / 11期
基金：
美国能源部;
关键词：
D O I：
10.1007/s10853-005-2406-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An analytical model of segregation at grain boundaries, which takes into account all five macroscopic parameters of grain boundary character, has been developed. The model is based on a combination of previous bond energy treatments of grain boundary energy and of segregation to free surfaces. It is tested by comparing its predictions against previous computations of segregation to symmetrical twist grain boundaries in simple fcc alloys obtained by Monte Carlo simulations in conjunction with embedded atom method potentials. The comparison shows good agreement with the previous computer simulations. Examples of model predictions in the case of asymmetric grain boundaries are also provided. (C) 2005 Springer Science + Business Media, Inc.
引用
收藏
页码：2765 / 2773
页数：9
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