点击次数：

论文类型：期刊论文

发表时间：2012-01-01

发表刊物：CORROSION SCIENCE

收录刊物：SCIE、EI

卷号：54

期号：1

页面范围：212-218

ISSN号：0010-938X

关键字：Magnesium; Polarization; Welding

摘要：The paper investigates the corrosion behavior of the lap joint of AZ31 magnesium alloy to Q235 steel with salt solution immersion testing and electrochemical testing. It is demonstrated that grain refinement resulting from the welding process has little effect on the corrosion behavior of the lap joint. However, the cathodic phases formed in the welding process and the galvanic corrosion between magnesium alloy and steel decrease the corrosion resistance of the joint greatly. Besides, neither Cu nor Ni, as filler material, could improve the corrosion resistance of the joint, but the arc-sprayed Al coating acting as a protective layer could. (C) 2011 Elsevier Ltd. All rights reserved.