35CrMo钢表面激光熔覆Ni/WC-Y2O3合金工艺研究

摘要

The influences of laser power, scanning speed and off-focus on the properties of layer cladding Ni/WC -Y2O3 on the surface of 35CrMo steel were studied. Choose the right levels to make the orthogonal experiment , then the laser cladding process parameters which adapt to produce the excellent hardness and surface wear properties of the cladding layer could be got. In addition, the influence of WC and Y2O3 to the microstructure properties of the cladding layer was also analyzed.%研究了35CrMo钢表面激光熔覆Ni/WC-Y2O3时激光功率、扫描速度和离焦量对熔覆层性能的影响,通过选择合适的水平进行正交试验,得到了熔覆层硬度和耐磨性能优良的较优工艺参数.此外,还分析了WC和Y2O3对熔覆层组织性能的影响.