Effect of temperature on structure and corrosion resistance for electroless NiWP coating

被引：11
作者：
Yu, M. Q. [1 ]
Qiao, Q. [2 ]
You, F. [2 ]
Li, C. L. [2 ]
Zhao, Y. [2 ]
Xiao, Z. Z. [2 ]
Luo, H. L. [1 ]
Xu, Z. F. [1 ]
Matsugi, Kazuhiro [1 ]
Yu, J. K. [2 ]
机构：
[1] Hiroshima Univ, Grad Sch Engn, 1-4-1 Kagamiyama, Higashihiroshima 7398527, Japan
[2] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Hebei, Peoples R China
来源：
BULLETIN OF MATERIALS SCIENCE | 2016年 / 39卷 / 02期
关键词：
AZ91D magnesium alloy; electroless NiWP coating; temperature; corrosion resistance; W-P COATINGS; MAGNESIUM ALLOY; DUPLEX COATINGS; WEAR; MICROSTRUCTURE; DEPOSITION; BEHAVIOR; NICKEL;
D O I：
10.1007/s12034-016-1179-x
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of plating temperatures between 60 and 90A degrees C on structure and corrosion resistance for electroless NiWP coatings on AZ91D magnesium alloy substrate was investigated. Results show that temperature has a significant influence on the surface morphology and corrosion resistance of the NiWP alloy coating. An increase in temperature will lead to an increase in coating thickness and form a more uniform and dense NiWP coatings. Moreover, cracks were observed by SEM in coating surface and interface at the plating temperature of 90A degrees C. Coating corrosion resistance is highly dependent on temperature according to polarization curves. The optimum temperature is found to be 80 (a similar to) C and the possible reasons of corrosion resistance for NiWP coating have been discussed.
引用
收藏
页码：519 / 523
页数：5
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