Stress Corrosion Cracking Behavior of 2024 and 7075 High-Strength Aluminum Alloys in a Simulated Marine Atmosphere Contaminated with SO2

被引：12
|
作者：
Ge, Feng [1 ]
Zhang, Luo [1 ]
Tian, Huiyun [1 ]
Yu, Mingdong [1 ]
Liang, Jianming [1 ]
Wang, Xin [1 ]
机构：
[1] Ocean Univ China, Coll Mat Sci & Engn, Qingdao 266100, Shandong, Peoples R China
来源：
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2020年 / 29卷 / 01期
基金：
中国国家自然科学基金;
关键词：
high-strength aluminum alloy; marine atmosphere; stress corrosion cracking; SO2; INDUCED HYDROGEN EMBRITTLEMENT; MECHANICAL-PROPERTIES; ANODIC-DISSOLUTION; PITTING CORROSION; AZ31; MAGNESIUM; E690; STEEL; SCC; RESISTANCE; PH; AA7050;
D O I：
10.1007/s11665-019-04537-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The stress corrosion cracking (SCC) of high-strength 2024-T351 and 7075-T651 aluminum alloys in simulated marine atmospheric medium containing HSO3- was investigated. The results showed that the presence of HSO3- could significantly accelerate the corrosion process of 2024-T351 and 7075-T651 high-strength aluminum alloy. This process was attributed to the enhanced anodic dissolution and hydrogen embrittlement caused by the HSO3-. The SCC susceptibility showed an increasing trend in both of aluminum alloys with increasing HSO3- concentration. Meanwhile, the hydrogen generated by HSO3- was shown to change the failure mode of these two aluminum alloys.
引用
收藏
页码：410 / 422
页数：13
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