Atmospheric corrosion of field-exposed AZ31 magnesium in a tropical marine environment

被引：160

作者：

Cui, Zhongyu ^{[1
]}

Li, Xiaogang ^{[1
,2
]}

Xiao, Kui ^{[1
,2
]}

Dong, Chaofang ^{[1
,2
]}

机构：

[1] Univ Sci & Technol Beijing, Ctr Corros & Protect, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing 100083, Peoples R China

来源：

CORROSION SCIENCE | 2013年 / 76卷

基金：

中国国家自然科学基金;

关键词：

Magnesium; EIS; Atmospheric corrosion; Pitting corrosion; Rust; LOW-CARBON STEEL; AUTOMOTIVE INDUSTRY; ALLOY AZ91D; NACL; BEHAVIOR; CHLORIDE; MICROSTRUCTURE; TEMPERATURE; DEPOSITION; KINETICS;

D O I：

10.1016/j.corsci.2013.06.047

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

Corrosion behavior of AZ31 magnesium in tropical marine atmosphere was investigated. Chloride ions deposition rate played an important role in the corrosion process, which resulted in an obvious fluctuation of the corrosion rate. The corrosion was initiated from pitting corrosion and then evolved into general corrosion as the exposure time extended. Mg-5(CO3)(4)(OH)(2)center dot xH(2)O was the dominate products during the whole exposure periods. The products on the specimens weathered for 1, 6 and 12 months slightly suppressed the corrosion process, while that generated after 24 months of exposure exhibited good protective ability against further corrosion attacks. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：243 / 256

页数：14

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