Controlling Intergranular Fracture by Grain Boundary Segregation (Ⅱ)——Prediction of Grain Boundary Segregation and Intergranular Fracture

被引：0

作者：

梁成广

张瑗

佘冬苓

朱逢吾

肖纪美

机构：

[1] Department of Material Physics

[2] PRC

[3] Beijing 100083

[4] Research Institute of Material’s Failure

[5] University of Science and Technology Beijing

来源：

Science China Mathematics | 1994年 / 01期

关键词：

grain boundary segregation; intergranular fracture;

D O I：

暂无

中图分类号：

TG111 [金属物理学];

学科分类号：

0702 ; 070205 ;

摘要：

The equation of the effect of gram boundary segregation on mtergranular fracture energy is derived with quasichemical method,and the mtergranular fracture parameter P is defined.When P>0 or P<0,the segregated species are embrittling or toughening.The bigger the |P|,the stronger the tendency of embrittling or toughening.Four items of modification on Seah’ s theory are presented and mis-classification solved.

引用

页码：112 / 122

页数：11

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