Abstract
In the paper, Ni45 alloy coating was produced by laser cladding on 42CrMoA alloy steel using the 5 kW CO2 laser, four-axis CNC machines and the coaxial powder feeding system. It were investigated that the effects of Y2O3 on microstructure and wear resistance of the Ni-based coating. The macromorphology and microstructures were characterized by using optical microscopy, SEM, and microhardness tester. The wear properties were evaluated on the friction-wear tester. The results show that the microstructure was first refined and then coarsened with the increase of Y2O3 addition. When the Y2O3 addition is 0.3 wt%,the coating showed the finest microstructure. Meanwhlie, the wear rates of coating were gradually decreased.
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The authors are also grateful for the financial aids from the Foundation of Changchun Institute of Equipment and Processes (Grant No: WDZC2019JJ015).
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Li, Y., Shi, Y., Wu, Q. (2021). Effects of Y2O3 on Microstructure and Wear Resistance of Laser Cladding Ni-Based Coating on 42CrMoA Alloy Steel. In: Zheng, L., Sun, C., Goh, KL. (eds) Proceedings of MEACM 2020. MEACM 2020. Mechanisms and Machine Science, vol 99. Springer, Cham. https://doi.org/10.1007/978-3-030-67958-3_25
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DOI: https://doi.org/10.1007/978-3-030-67958-3_25
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