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

页码：483 / 486

页数：4

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