Corrosion resistance of a superhydrophobic micro-arc oxidation coating on Mg-4Li-1Ca alloy

被引：99

作者：

Cui, Lan-Yue ^{[1
]}

Liu, Han-Peng ^{[1
]}

Zhang, Wen-Le ^{[1
]}

Han, Zhuang-Zhuang ^{[1
]}

Deng, Mei-Xu ^{[2
]}

Zeng, Rong-Chang ^{[1
]}

Li, Shuo-Qi ^{[1
]}

Wang, Zhen-Lin ^{[3
]}

机构：

[1] Shandong Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266590, Peoples R China

[2] Shandong Univ Sci & Technol, Coll Civil Engn & Architecture, Qingdao 266590, Peoples R China

[3] Chongqing Univ Technol, Coll Mat Sci & Engn, Chongqing 400065, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2017年 / 33卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Magnesium alloys; Micro-arc oxidation; Superhydrophobic coating; Corrosion; SUPER-HYDROPHOBIC SURFACE; MG-CA ALLOYS; MAGNESIUM ALLOY; ELECTRODEPOSITION PROCESS; FABRICATION; DEGRADATION; SUBSTRATE; ABRASION; ACID; FILM;

D O I：

10.1016/j.jmst.2017.10.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

micro-arc oxidation (MAO)/zinc stearate (ZnSA) composite coating was fabricated via MAO processing and subsequent sealing with electrodeposition of a superhydrophobic ZnSA. The surface morphologies, chemical composition and corrosion resistance of the coatings were investigated using field-emission scanning electron microscopy,Fourier transform infrared, X-ray diffraction and electrochemical and hydrogen evolution measurements. Results indicated that the MAO coating was efficiently sealed by the following superhydrophobic ZnSA coating. The MAO/ZnSA composite coating significantly enhanced the corrosion resistance of Mg alloy Mg-4Li-1Ca due to its superhydrophobic function. Additionally, corrosion mechanism was suggested and discussed for the composite coating. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.

引用

页码：1263 / 1271

页数：9

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