Experimental study of corrosion protection of a three-layer film on AZ31B Mg alloy

被引：51

作者：

Guo, Xinghua ^{[1
]}

Du, Keqin ^{[1
]}

Guo, Quanzhong ^{[1
]}

Wang, Yong ^{[1
]}

Wang, Fuhiu ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang, Peoples R China

来源：

CORROSION SCIENCE | 2012年 / 65卷

关键词：

Magnesium; Organic coatings; Nickel; Metal coatings; Anodic films; PLASMA ELECTROLYTIC OXIDATION; SNAP SURFACE TREATMENTS; AZ91D MAGNESIUM ALLOY; NACL SOLUTION; ELECTROCHEMICAL-BEHAVIOR; SILICA MICROSPHERES; IMPEDANCE MODELS; COATED METALS; COATINGS; MICROSTRUCTURE;

D O I：

10.1016/j.corsci.2012.08.055

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A composite three-layer film was prepared on AZ31B Mg alloy for corrosion protection by means of plasma electrolytic oxidation (PEO), self-assembled nanophase particle (SANP) and electroless nickel (EN) plating. Structure and corrosion protection were characterized by various analytical instruments and electrochemical methods. Experiment results indicated that the composite film consisted of compact EN plating and coherent bilayer film, which provided effective protection for Mg alloy against galvanic corrosion and long-term immersion corrosion. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：367 / 375

页数：9

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