Abstract
Using plasma build-up welding technology, Ni60, WC, Cr3C2, 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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Funded by the Scientific Research Foundation of Sha ndong University of Science and Technology for Recruited Talents (No.2014RCJJ041) and the National Natural Science Foundation of China(51774199)
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Zhu, J., Yu, H. & Zhang, L. Preparation and Characterization of Ni60-Cr3C2-WC/TiC Plasma Welding Surfacing Layer. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 33, 1402–1406 (2018). https://doi.org/10.1007/s11595-018-1982-x
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DOI: https://doi.org/10.1007/s11595-018-1982-x