Abstract—Laser cladding experiments are carried out using the mixed powders with different mass fraction of CeO
2. The physical properties of the cladding coating are analyzed, such as the surface morphology, crack sensitivity, dilution rate, wettability, and surface hardness. Further, the influence law of CeO
2 on the performance of laser cladding coating is studied. The results show that if the rare earth oxide CeO
2 is added into the Ni60A alloy powder, the crack sensitivity of cladding coating can be reduced, and the dilution rate of cladding coating can be decreased, also the hardness of cladding coating can be improved. However, the wettability of substrateit is adversely affected. If the amount of CeO
2 is high, the surface quality of cladding coating will decrease, which cannot meet the requirements of application and processing. According to the experiments, it is concluded that the best addition amount of CeO
2 is 5%.
Index Terms—CeO
2, laser cladding, Ni based alloy, properties of coating.
Both authors are with the Department of Mechanical Engineering, Qingdao University of Technology, Qing Dao, China (e-mail: yyong901@163.com, 609462721@qq.com).
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Cite: Y. Yang and L. Chen, "Effect of CeO2 on the Performance of Laser Cladding Coating of Ni-based Alloy," International Journal of Materials, Mechanics and Manufacturing vol. 6, no. 3, pp. 166-169, 2018.
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