材料科学
摩擦学
复合数
涂层
扫描电子显微镜
微观结构
冶金
电镀
腐蚀
二硫化钨
碳化钨
复合材料
钨
润滑
电镀(地质)
图层(电子)
地质学
地球物理学
作者
Cansen Liu,Dongdong Wei,Ruisi Xu,Y.J. Mai,Liuyan Zhang,Xiaohua Jie
出处
期刊:Tribology Transactions
日期:2020-07-27
卷期号:63 (5): 857-866
被引量:13
标识
DOI:10.1080/10402004.2020.1759742
摘要
High-performance coatings with self-lubrication, superior wear, and corrosion resistance are sought after in modern industry. Here we reported a cobalt–nickel/tungsten disulfide (Co-Ni/WS2) composite coating fabricated by a pulse electrodeposition approach. The codeposition of WS2 significantly affects the microstructure, hardness, and tribological and electrochemical behaviors of the Co-Ni/WS2 composite coating. Scanning electron microscopy, X-ray diffraction, and energy dispersive X-ray spectroscopy analyses show that the Co-Ni/WS2 composite coating is characterized by a hierarchical “cactus-like” structure with WS2 embedded and distributed uniformly in the Co-Ni matrix. Tribological and electrochemical tests reveal that the Co-Ni/WS2 composite coating exhibits a low coefficient of friction (COF) and wear rate sliding against a GCr15 steel ball under dry sliding conditions and remarkable corrosion resistance in 5.0 wt% NaOH solution under room temperature and is thus a promising composite coating for practical applications.
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