NIMTE OpenIR  > 2017专题
Two feasible approaches to enhance the wear behaviors of NiCrBSi coating in atmosphere and aqueous environments
Ye, Yuwei; Wang, Chunting; Zheng, Wenru; Xiong, Wei; Wang, Yongxin; Li, Xiaogang
2017
发表期刊SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
卷号5期号:3
摘要NiCrBSi coating was deposited successfully on the surface of 316 stainless steel substrate by means of plasma spraying. The microstructures and mechanical property were analyzed by scanning electron microscopy, x-ray diffraction, and a Vickers hardness tester. The wear performances of the coatings sliding against the GCr15 ball under ambient air and water conditions were investigated, and two feasible approaches (tungsten carbide (WC)-doping and heat treatment) were used to improve the tribological performance. Results showed that the hardness of the NiCrBSi coating increased by 12.5% and 28.5% and the porosity decreased by 26.1% and 47.8%, respectively, after WC-doping and heat treatment. During dry friction, the friction coefficient and wear rate of the NiCrBSi coating were about 0.47 and 1.4 x 10(-5) mm(3) N-1 m(-1), respectively. These values were higher than those obtained on other coatings. In water conditions, all coatings showed a lower friction and wear rate than that in ambient air, which was as a result of the lubrication effect of water. Significantly, with WC-doping and heat treatment, the friction coefficients of both coatings were about 18.5% and 36.7%, respectively, lower than that of the NiCrBSi coating. Furthermore, the wear rates of both coatings were about 20% and 70%, respectively, lower than that of the NiCrBSi coating.
关键词Water Lubrication Ni Laser Flame Microstructure Performance Improvement Resistance Friction Surface
学科领域Chemistry ; Materials Science
语种英语
文献类型期刊论文
条目标识符http://ir.nimte.ac.cn/handle/174433/17504
专题2017专题
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GB/T 7714
Ye, Yuwei,Wang, Chunting,Zheng, Wenru,et al. Two feasible approaches to enhance the wear behaviors of NiCrBSi coating in atmosphere and aqueous environments[J]. SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES,2017,5(3).
APA Ye, Yuwei,Wang, Chunting,Zheng, Wenru,Xiong, Wei,Wang, Yongxin,&Li, Xiaogang.(2017).Two feasible approaches to enhance the wear behaviors of NiCrBSi coating in atmosphere and aqueous environments.SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES,5(3).
MLA Ye, Yuwei,et al."Two feasible approaches to enhance the wear behaviors of NiCrBSi coating in atmosphere and aqueous environments".SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES 5.3(2017).
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