Microstructure and corrosion property of AZ61 magnesium alloy by electromagnetic stirring

被引：0
|
作者：
房灿峰
张兴国
季首华
金俊泽
常玉宝
机构：
[1] China
[2] Dalian 116024
[3] Dalian University of Technology
[4] Research Center of Foundry Engineering
来源：
Transactions of Nonferrous Metals Society of China | 2005年 / 03期
关键词：
magnesium alloy; permanent magnet; microstructure; corrosion;
D O I：
暂无
中图分类号：
TG172 [各种类型的金属腐蚀];
学科分类号：
080503 ;
摘要：
The influence of permanent-magnet-driven stirring during solidification on the microstructure and corrosion property of AZ61 magnesium alloy was investigated. The corrosion behaviour of AZ61 was studied in ~3.5 ~mol/L NaCl by measuring electrochemical polarization. The results show that the permanent-magnet stirring refines the microstructure of AZ61 magnesium alloy, which improves the precipitation amount and distribution uniformity of β phase and decreases the content of hydrogen, but it has less influence on the distribution uniformity of Zn. The change of precipitation amount of β phase influences the corrosive nature of the matrix, and it has no direct proportion with the corrosion resistance of the matrix.
引用
收藏
页码：536 / 541
页数：6
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