Simulation of lattice orientation effects on void growth and coalescence by crystal plasticity

被引：0
|
作者：
Mei YANG and Xianghuai DONG Department of Plastic Forming
机构：
来源：
Acta Metallurgica Sinica(English Letters) | 2009年 / 22卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Crystal plasticity; Void growth; Void coalescence; Lattice orientation; Bicrystal;
D O I：
暂无
中图分类号：
TB302 [工程材料试验];
学科分类号：
0805 ; 080502 ;
摘要：
A three dimensional rate-dependent crystal plasticity model is applied to study the influence of crystal orientation and grain boundary on the void growth and coales- cence. The 3D computational model is a unit cell including one sphere void or two sphere voids. The results of three different orientations for single crystal and bicrystals are compared. It is found that crystallographic orientation has noticeable influences on the void growth directionvoid shape, and void coalescence of single crystal. The void growth rate of bicrystals depends on the crystallographic orientations and grain boundary direction.
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页码：40 / 50
页数：11
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