Mechanistic studies of atmospheric corrosion behavior of Al and Al-based alloys in a tropical marine environment

被引：0
|
作者：
Zhongyu Cui
Feng Ge
Xiaogang Li
Min Zhu
Kui Xiao
Chaofang Dong
Xin Wang
机构：
[1] Ocean University of China,Institute of Materials Science and Engineering
[2] University of Science and Technology Beijing,Corrosion and Protection Center
[3] Zhejiang Sci-Tech University,Lab of Multi
来源：
Journal of Wuhan University of Technology-Mater. Sci. Ed. | 2017年 / 32卷
关键词：
aluminum; atmospheric corrosion; pitting corrosion;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Atmospheric corrosion behavior of pure Al 1050A, 5A02 and 6A02 aluminum alloys exposed to a tropical marine environment for 4 years was investigated. Synergetic effect of Cl- deposition rate and time of wetness resulted in an abnormal increase in weight loss and a significant fluctuation in corrosion rate. Pitting corrosion occurred on the three metals. Pits on 5A02 alloy were easy to initiate and inclined to propagate laterally to form higher corrosion area and shallower corrosion pits, while pits on 6A02 alloy presented the opposite appearances. This was further confirmed by the cyclic polarization experiments.
引用
收藏
页码：633 / 639
页数：6
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