A study on hole growth and coalescence controlled by coupled boundary diffusion and power-law creep at high temperature creep

被引：0
|
作者：
Yin, JR [1 ]
Zhang, P [1 ]
Zhang, JY [1 ]
机构：
[1] Xiangtan Univ, Inst Fdm Mech & Engn Mat, Xiangtan 411105, Peoples R China
来源：
MECHANICS AND MATERIAL ENGINEERING FOR SCIENCE AND EXPERIMENTS | 2001年
关键词：
hole growth; ineso-criterion; C* integral; critical time;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper it is considered that grain boundaries was controlled by coupled boundary diffusion and power-law creep mechanism. The Cocks-Ashby model for hole growth on grain boundary (GB) at high temperature creep is modified. Using method of fracture mechanics of large range yield, a hole-coalescence model was provided with considering the mesogeometrical and physical behavior of GB. And the critical time-coalescence and width of ligament were calculated.
引用
收藏
页码：483 / 486
页数：4
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