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DISPERSION TOUGHENING

被引：10
作者：
LI, JCM
SANDAY, SC
机构：
[1] US Naval Research Lab, Div of, Materials Science & Technology,, Washington, DC, USA, US Naval Research Lab, Div of Materials Science & Technology, Washington, DC, USA
来源：
ACTA METALLURGICA | 1986年 / 34卷 / 03期
关键词：
METALLOGRAPHY; -; Inclusions;
D O I：
10.1016/0001-6160(86)90089-1
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The toughening effect of a single inclusion is effective if it can attract the crack to enter it and blunt it. A cluster of inclusions has the most toughening effect compared to either a single inclusion or uniformly distributed inclusions in a finite body. The increase in toughness of periodically arranged inclusions is proportional to the volume fraction of inclusions, strain, of misfit, and the square root of inclusion spacing. Increase is independent of crack length, hence dispersion toughening is more effective in crack nucleation than in crack growth.
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页码：537 / 543
页数：7
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