Vacuum crack growth behavior of austenitic stainless steel under fatigue loading

被引：0
|
作者：
T. Takeda
Y. Shindo
F. Narita
机构：
[1] Tohoku University,
来源：
Strength of Materials | 2011年 / 43卷
关键词：
fracture mechanics; finite element analysis; fatigue test; stainless steel; crack growth rate; environmental effects;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The fatigue crack growth behavior of an austenitic stainless steel in a vacuum environment has been studied. Fatigue crack growth tests were performed with the compact tension specimens in laboratory air and vacuum, and the environmental effect on the crack growth behavior was examined. The crack growth rate data were expressed in terms of the J-integral range during fatigue loading, while an elastic–plastic finite element analysis was employed to calculate the J-integral range. The fractographic examinations were also carried out to assess the crack growth mechanisms and correlate with fatigue characteristics. The results show an accelerated fatigue crack growth in air compared to that in vacuum and this environmental effect depends on the load ratio.
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页码：532 / 536
页数：4
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