Effects of current mode on properties of anodic coatings of magnesium alloys

被引：0

作者：

Zhang Rongfa ^{[1
]}

Shan Dayong

Han Enhou

Duo Shuwang

机构：

[1] Jiangxi Sci & Technol Normal Univ, Jianxi Key Lab Surface Engn, Nanchang 330013, Peoples R China

[2] Chinese Acad Sci, Inst Met Res, Environm Corros Ctr, Shenyang 110016, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2006年 / 35卷 / 09期

关键词：

magnesium alloys; anodic coating; property; electric parameters;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Adopting process of tagnite, effects of three current controlling modes, namely constant current, unipolar current and bipolar current on properties of anodic coatings of AZ91HP magnesium alloys were studied. coatings formed by the three methods were all compact, the number of pores per unit by bipolar current was the least among them, and there was no difference between those by constant current and unipolar current. The uniformity of pore size for the coating obtained by bipolar current was the best and that by constant current was the worst. According to EDS analysis, these coatings contained Si, O, Mg and F. Salt spray test showed that corrosion resistance of the coating by bipolar current was the best and the coating by constant current the worst.

引用

页码：1392 / 1395

页数：4

共 18 条

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