Improving wear resistance and corrosion resistance of AZ31 magnesium alloy by DLC/AlN/Al coating

被引：93

作者：

Wu, Guosong ^{[1
]}

Dai, Wei ^{[1
]}

Zheng, He ^{[1
]}

Wang, Aiying ^{[1
]}

机构：

[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2010年 / 205卷 / 07期

基金：

中国博士后科学基金;

关键词：

Magnesium alloy; DLC; Ion beam deposition; Sputtering; Wear; Corrosion; DIAMOND-LIKE CARBON; DLC FILMS; ELECTROCHEMICAL CORROSION; COMPUTER-SIMULATION; GALVANIC CORROSION; AMORPHOUS-CARBON; THIN-FILMS; ALUMINUM; BEHAVIOR; MICROSTRUCTURE;

D O I：

10.1016/j.surfcoat.2010.08.103

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A novel protective coating, consisting of three layers (top: diamond-like carbon, middle: aluminum nitride, bottom: aluminum), was deposited on the surface of AZ31 magnesium alloy layer by layer. Nano-indenter, electrochemical system and tribological tester were performed to investigate the hardness, wear resistance and corrosion resistance of the coated AZ31 magnesium alloy, respectively. The DLC/AlN/Al coating improved the magnesium alloy's surface hardness and reduced its friction coefficient, which consequently induced a great improvement of the magnesium alloy's wear resistance. Furthermore, the corrosion resistance of the AZ31 magnesium alloy with the DLC/AlN/Al coating was also enhanced with the corrosion current density decreasing from 2.25 x 10(-5) A/cm(2) to 1.28 x 10(-6) A/cm(2) in a 3.5 wt.% NaCl solution. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2067 / 2073

页数：7

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