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本文通过激光辐照的方法,研究了在高温合金试样表面掺杂Y_2O_3质点的可能性、均匀程度与激光辐照参数的关系。结果表明,当预涂粉末数量为0.035g/cm~2和0.059g/cm~2时,选择功率密度为1.76×10~4w/cm~2,扫描速度为0.36m/min时,可获得Y_2O_3质点在熔掺区中宏观上的均匀分布,其氧化钇的含量达1.2～2.0Wt％。
In this paper, by means of laser irradiation, the possibility of doping Y_2O_3 particles on the surface of superalloy was studied. The relationship between the homogeneity and laser irradiation parameters was studied. The results show that when the pre-coated powders are 0.035g / cm ~ 2 and 0.059g / cm ~ 2, the power density is 1.76 × 10 ~ 4w / cm ~ 2 and the scanning speed is 0.36m / Particles in the melt zone macroscopically uniform distribution of the yttrium oxide content of 1.2 ~ 2.0Wt%.