An overview on environmentally-assisted fatigue crack propagation

被引：0
|
作者：
Petit, J [1 ]
Sarrazin-baudoux, C [1 ]
Henaff, G [1 ]
机构：
[1] CNRS, UMR 6617, Mecan & Phys Mat Lab, F-86960 Futuroscope, France
来源：
FATIGUE '99: PROCEEDINGS OF THE SEVENTH INTERNATIONAL FATIGUE CONGRESS, VOLS 1-4 | 1999年
关键词：
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The deleterious effect of the atmospheric environment on fatigue crack growth is studied on several metallic alloys including steels, Al and Ti based alloys. Tests with crack closure correction or without closure (Kmax constant tests) and tests in high vacuum are used to uncouple the effect of closure and of environment with respect to the alloy microstructure. The detrimental role of water vapor is analyzed on the basis of experiments conducted in gaseous environments with controlled partial pressures. Modeling of intrinsic and environmentally assisted crack growth is proposed.
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页码：2221 / 2228
页数：8
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