Preparation and Characterization of Ni60-Cr3C2-WC/TiC Plasma Welding Surfacing Layer
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2018年第6期
论文作者：朱纪明 俞海玲 ZHANG Longyu
文章页码：1402 - 1406
摘 要：Using plasma build-up welding technology, Ni60, WC, Cr3 C2, and TiC composite powders were clad on the surface of the substrate in a certain proportion according to the metallurgical bonding method to increase the bond strength between the coating and the substrate. Scanning electron microscopy and energy dispersive spectroscopy were used to observe the microstructure of the surfacing layer and the chemical composition of the sample. The hardness and wear resistance of the surfacing layer were tested and analyzed by the HV-1000 hardness tester and the impact wear device. The results showed that in the microstructure, fishbone, spider-web, and floral-like structures appeared in the surfacing layer. When the micro-hardness was tested, the depth of the indentation reflected the hardness of the surfacing layer. When analyzing wear resistance, the amount of wear increases with time.
朱纪明1，俞海玲2，ZHANG Longyu1
1. Department of Resources and Civil Engineering, Shandong University of Science and Technology2. College of Mining and Safety Engineering, Shandong University of Science and Technology
摘 要：Using plasma build-up welding technology, Ni60, WC, Cr3 C2, and TiC composite powders were clad on the surface of the substrate in a certain proportion according to the metallurgical bonding method to increase the bond strength between the coating and the substrate. Scanning electron microscopy and energy dispersive spectroscopy were used to observe the microstructure of the surfacing layer and the chemical composition of the sample. The hardness and wear resistance of the surfacing layer were tested and analyzed by the HV-1000 hardness tester and the impact wear device. The results showed that in the microstructure, fishbone, spider-web, and floral-like structures appeared in the surfacing layer. When the micro-hardness was tested, the depth of the indentation reflected the hardness of the surfacing layer. When analyzing wear resistance, the amount of wear increases with time.
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