High-temperature Friction and Wear Resistance of Ni-Co-SiC Composite Coatings

被引:0
|
作者
Guo, Fang [1 ]
Sun, Wan-chang [1 ]
Jia, Zong-wei [1 ]
Liu, Xiao-jia [1 ]
Dong, Ya-ru [1 ]
机构
[1] Xian Univ Sci & Technol, Coll Mat Sci & Engn, Xian 710054, Shaanxi, Peoples R China
关键词
TRIBOLOGICAL PROPERTIES;
D O I
10.1088/1757-899X/362/1/012008
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Ni-Co alloy and SiC micro-particles were co-deposited on 45 steel by electrodeposition for high temperature performance. The high temperature tribological characteristics were studied by use of a ball-on-disk method. The micrographs and phase structure of the Ni-Co-SiC composite coatings after high-temperature friction were observed by using a field emission scanning electron microscope(FESEM). The results reveal that the Ni-Co-SiC composite coating presents better wear resistance and lower friction coefficient at high temperature in comparison with that of Ni-Co coating and 45 steel substrate. The embedded SiC particles could strengthen the alloy coating by dispersion strengthening effect and changing the friction mechanism from adhesive wear to abrasive wear.
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页数:6
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