Influence of corrosion on fatigue strengths of an aluminum alloy and its friction stir welding joints

被引：0
作者：
Hagisawa, Nobuyasu
Okura, Ichiro
Hanazaki, Masayuki
Onishi, Hiroshi
Sato, Masanori
机构：
来源：
Doboku Gakkai Ronbunshuu A | 2006年 / 62卷 / 03期
关键词：
Aluminum alloy; Atmospheric exposure; Corrosion; Fatigue; Friction stir welding;
D O I：
10.2208/jsceja.62.478
中图分类号：
学科分类号：
摘要：
In this study, influence of corrosion on fatigue strengths of parent material and its joint by the friction stir welding (FSW) of extruded A6N01-T5 is clarified. The specimens of them are exposed at Okinawa, and investigations of corrosion are carried out on them after the atmospheric exposure in a half, one and two years. The relation between corrosion and fall of fatigue strength is clarified after fatigue tests of the corroded specimens. The form of the corrosion is intergranular corrosion. The erosion in the direction of the depth of each intergranular corrosion does not proceed after a year. Fatigue cracks are generated from the intergranular corrosion. The fatigue strength after the atmospheric exposure falls to 72% on the parent material and to 85% on the FSW joints.
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页码：478 / 488
页数：10
相关论文
共 2 条
[1]  
Haagensen P.J., Fatigue performance of friction stir butt welds in a 6000 series aluminum alloy, Computer Methods and Experimental Measurement for Surface Treatment Effects, 2, pp. 7-9, (1995)
[2]  
Ranes M., Kluken A.O., Mdling O.T., Fatigue properties of as-welded AA6005 and AA6082 aluminum alloys in T1 and T5 temper condition, International Conference, pp. 5-8, (1995)
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