Corrosion behavior of AZ31 magnesium alloy in simulated acid rain solution

被引：19
|
作者：
Liu F. [1 ]
Song Y.-W. [1 ]
Shan D.-Y. [1 ]
Han E.-H. [1 ]
机构：
[1] State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences
来源：
Transactions of Nonferrous Metals Society of China (English Edition) | 2010年 / 20卷 / SUPPL. 2期
基金：
中国国家自然科学基金;
关键词：
AlMn phase; AZ31 magnesium alloy; Cl[!sup]-[!/sup] ion; simulated acid rain solution;
D O I：
10.1016/S1003-6326(10)60553-5
中图分类号：
学科分类号：
摘要：
The corrosion mechanism of AZ31 magnesium alloy used as automobile components and the influence of the concentration of Cl- ion in simulated acid rain (SAR) were studied by electrochemical tests and SEM. The results show that pitting corrosion happens around the AlMn phases locating at the grain boundary. The corrosion of AZ31 magnesium alloy in SAR is controlled by the rate of anodic dissolution and hydrogen evolution, and the corrosion rate of AZ31 increases with increasing concentration of Cl- ion. However, the Cl- ion in SAR is not the main influencing factor inducing the pitting corrosion. © 2010 The Nonferrous Metals Society of China.
引用
收藏
页码：s638 / s642
页数：4
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