The Corrosion Fatigue Life Research of Shot Peening Aluminum Alloy

被引:0
|
作者
Li, Song [1 ]
Cui, You [1 ]
Lv, Shengli [2 ]
Zhang, Wei [2 ]
Tong, Xiaoyan [2 ]
机构
[1] Northwestern Polytech Univ, Sch Aeronaut, Xian 710072, Peoples R China
[2] Northwestern Polytech Univ, Sci & Technol Lab, Xian 710072, Peoples R China
关键词
aluminum alloy; shot peening; pre-corrosion fatigue; Denudation;
D O I
10.4028/www.scientific.net/AMR.366.19
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The corrosion is one kind of major damage mechanisms of airplane structure and is also one of the primary causes resulting in flight failure and disaster. The aim of this paper is to analyze the effect of corrosion time on denudation depth, mass loss and the total depth of corrosion damage. Meanwhile, the three parameters have significant influence on residual fatigue life of aluminum alloy, the residual fatigue life of the aluminum alloy is of great difference between shot peening and without shot peening aluminum alloy. Then residual fatigue life tests are carried on Instron 8801 for the shot peening and without shot peening aluminum alloy. Based on contrast analysis of the experimental results, valuable conclusions are obtained: with the increase of the denudation depth, mass loss and the total depth of corrosion damage, fatigue life reduce continuously respectively; Fatigue life decreases rapidly when the denudation depth is in the range of 0.12 similar to 0.17mm.
引用
收藏
页码:19 / +
页数:2
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