Preparation and corrosion resistance of MAO layer/Yb2SiO5 composite coating on Mg alloy

被引：18
作者：
Fan, Xizhi [1 ,2 ]
Xu, Jiaying [1 ,2 ]
Wang, Ying [1 ]
Ma, Hongmei [1 ]
Zhao, Sumei [1 ,2 ]
Zhou, Xin [1 ,2 ]
Cao, Xueqiang [1 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resources Utilizat, Changchun 130022, Jilin, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
来源：
SURFACE & COATINGS TECHNOLOGY | 2014年 / 240卷
基金：
中国国家自然科学基金;
关键词：
Magnesium; MAO; Corrosion resistance; Interface; MAGNESIUM ALLOYS; BARRIER COATINGS; FILM FORMATION; ELECTROLYTE; MECHANISM; BEHAVIOR; INDUSTRY;
D O I：
10.1016/j.surfcoat.2013.12.024
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Microarc oxidation (MAO) layer and atmospheric plasma spraying (APS) Yb2SiO5 coat were successfully prepared on Mg alloy to improve the corrosion resistance of the substrate. Bond stability and protection of the composite coating were investigated. The results show that thermal sprayed Yb2SiO5 coat has good compatibility with MAO layer. The composite coating is well bonded with Mg alloy. MAO layer provides a stable interface and high hardness for Mg alloy to bond with Yb2SiO5 coat. The composite coating shows excellent thermal shock resistance. Porous MAO coating is effectively sealed by the melted Yb2SiO5. The MAO layer/Yb2SiO5 composite coating significantly improves the corrosion resistance of Mg alloy. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：118 / 127
页数：10
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