Corrosion behavior and microstructure of electrodeposited nano-layered Ni-Cr coatings

被引：25
|
作者：
Zhang, Hui [1 ]
Liu, Liaowang [1 ]
Bai, Jingsheng [2 ]
Liu, Xingbo [1 ]
机构：
[1] W Virginia Univ, Dept Mech & Aerosp Engn, Morgantown, WV 26506 USA
[2] Chinese Acad Sci, Inst Met Res, Shenyang 110015, Liaoning, Peoples R China
来源：
THIN SOLID FILMS | 2015年 / 595卷
关键词：
Cr electrodeposition; Multilayer coating; Electroplating; Corrosion resistance; Polarization; TRIVALENT CHROMIUM BATH; MECHANISM; CR(III);
D O I：
10.1016/j.tsf.2015.10.046
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A successful electroplating process has been developed to make crack-free Ni-Cr coatings. A single bath with a mixed solvent of dimethylformamide (DMF) and water into which a low toxic solute of Cr(III) and Ni(II) salts is dissolved serves for the electroplating operation. Electrochemical measurements presented here offer new insights into the predominant function of DMF in promoting high quality and crack-free formation of Ni-Cr coatings. Representative images of crack-free Ni-Cr multilayer coatings in both nanometer and micrometer scales illustrate the ability to control thickness and composition of the coatings simply through adjusting current density and deposition time in the DMF-mixed bath. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：36 / 40
页数：5
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