Effect of plasma electrolytic oxidation coating on the stress corrosion cracking behaviour of wrought AZ61 magnesium alloy

被引：48
作者：
Srinivasan, P. Bala [1 ]
Blawert, C. [1 ]
Dietzel, W. [1 ]
机构：
[1] GKSS Forschungszentrum Geesthacht GmbH, Inst Mat Res, D-21502 Geesthacht, Germany
来源：
CORROSION SCIENCE | 2008年 / 50卷 / 08期
关键词：
Magnesium; SEM; Anodic films; Stress corrosion;
D O I：
10.1016/j.corsci.2008.05.018
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An attempt was made to understand the effect of silicate based plasma electrolytic oxidation (PEO) coating on the stress corrosion cracking (SCC) behaviour of an AZ61 wrought magnesium alloy. The SCC behaviour of untreated and PEO coated specimens was assessed using slow strain rate tensile tests at two different nominal strain rates, viz. 1 x 10(-6) s(-1) and 1 X 10(-7) s(-1). in ASTM D1384 test solution at ambient conditions. The PEO coating was found to improve the general corrosion resistance to a significant extent: however, the improvement in the resistance to stress corrosion cracking was only marginal. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2415 / 2418
页数：4
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