Stabilizing force on perturbed grain boundaries using a dislocation model

被引：7
|
作者：
Zhu, Xiaohong [1 ,2 ]
Xiang, Yang [1 ]
机构：
[1] Hong Kong Univ Sci & Technol, Dept Math, Kowloon, Hong Kong, Peoples R China
[2] Jinan Univ, Dept Math, Guangzhou 510632, Guangdong, Peoples R China
来源：
SCRIPTA MATERIALIA | 2011年 / 64卷 / 01期
关键词：
Grain boundary migration; Dislocation dynamics; Mechanical stress; Micromechanical modeling; SHEAR DEFORMATION; MIGRATION; MOTION; DYNAMICS; SIMULATION;
D O I：
10.1016/j.scriptamat.2010.08.050
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this paper, we study the glide force due to stress on the constituent dislocations of slightly perturbed symmetric low-angle tilt boundaries We show that the stabilizing force comes from both the long-range interaction of the constituent dislocations and their local line tension effect We also present a continuum model for this glide force The obtained results and continuum model provide a basis for further understanding of the stress-driven migration of distorted grain boundaries (C) 2010 Acta Materialia Inc Published by Elsevier Ltd All rights reserved
引用
收藏
页码：5 / 8
页数：4
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