Corrosion behavior of carbon film coated magnesium alloy with electroless plating nickel interlayer

被引：18

作者：

Mao, Yan ^{[1
]}

Li, Zhuguo ^{[1
,5
]}

Feng, Kai ^{[1
,5
]}

Guo, Xingwu ^{[2
]}

Zhou, Zhifeng ^{[3
]}

Wu, Yixiong ^{[1
,4
,5
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai Key Lab Mat Laser Proc & Modificat, Shanghai 200240, Peoples R China

[2] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Natl Engn Res Ctr Light Alloys Net Forming LAF, Shanghai 200240, Peoples R China

[3] City Univ Hong Kong, Dept Mech & Biomed Engn, Kowloon, Hong Kong, Peoples R China

[4] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China

[5] Acad Expert Off Workstat Jiansheng Pan, Linan, Zhejiang, Peoples R China

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2015年 / 219卷

基金：

中国国家自然科学基金;

关键词：

Magnesium alloy; Thin film; Corrosion resistance; Physical vapor deposition; PVD-COATINGS;

D O I：

10.1016/j.jmatprotec.2014.12.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The carbon film with electroless nickel interlayer (Ni + C) was fabricated to improve the corrosion resistance of the magnesium alloy GW83. Compared to other coatings used in this study, the dense Ni + C coating improved adhesion with the substrate. The corrosion potential (Emir) of the Ni + C coated magnesium alloy was about -1.37V vs saturated calomel electrode (SCE) in contrast to about -1.67V vs SCE of the bare one in 3.5 wt% NaCl solution. The corrosion current density was reduced from 186 mu A cm(-2) to 11 mu A cm(-2). The 5 h immersion test revealed that the Ni + C coated magnesium alloy GW83 showed much less corrosion compared to the bare alloy. These evidences indicated that applying Ni + C coating could effectively improve the corrosion resistance of the magnesium alloy GW83. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：42 / 47

页数：6

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