Mixed-mode cleavage front branching at a high-angle grain boundary

被引：9
|
作者：
Chen, Jin [1 ]
Qiao, Yu [1 ]
机构：
[1] Univ Calif San Diego, Dept Struct Engn, La Jolla, CA 92093 USA
来源：
SCRIPTA MATERIALIA | 2007年 / 56卷 / 12期
关键词：
cleavage; grain boundaries; fracture;
D O I：
10.1016/j.scriptamat.2007.03.002
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In a previous study it was observed that a cleavage front can penetrate through a high-angle grain boundary in either regular or irregular mode. In this article, we report the third mode, which has a self-similar characteristic. In this mode, the cleavage front branches into a number of segments and the breakthrough points are in clusters, which can be regarded as the combination of regular and irregular processes. A first-order analysis is performed to estimate the boundary fracture resistance. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1027 / 1030
页数：4
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