Effect of stress ratio and frequency on fatigue crack growth rate of 2618 aluminium alloy silicon carbide metal matrix composite

被引：0
|
作者：
Nirbhay Singh
Ram Khelawan
G. N. Mathur
机构：
[1] Defence Materials & Stores Research & Development Establishment,
来源：
Bulletin of Materials Science | 2001年 / 24卷
关键词：
aluminium alloy-SiC composite; fatigue crack; stress ratio;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Effect of stress ratio and frequency on the fatigue crack propagation of 2618 aluminium alloy-silicon carbide composite were investigated at ambient temperature. With the first set of specimens, the fatigue crack growth rates were studied at three frequencies of 1 Hz, 5 Hz and 10 Hz at a stress ratio of 0.1 whereas the effects of stress ratios of 0.1, 0.25 and 0.50 were studied with the second set of specimens. The study showed that the fatigue crack propagation behaviour of this metal matrix composite was influenced to an appreciable extent by the stress ratio, but not by the fatigue frequencies used in this investigation.
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页码：169 / 171
页数：2
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