纯Cr粉末激光熔覆技术研究

Research on Technology of Laser Cladding of Pure Cr Powder

利用激光在PCrNi3Mo钢上熔覆纯Cr粉末,采用多道搭接技术实现了大面积激光熔覆,利用预热技术有效地消除熔覆层的裂纹。试验结果表明,获得了激光熔覆的最佳工艺参数,激光熔覆层均匀连续,无宏观气孔和裂纹,激光熔覆层与基体发生了冶金结合。熔覆层组织紧密,细化了晶粒和组织结构,硬度和耐磨损性能较高。

Laser cladding pure Cr powder coat on PCrNi3Mo steel. The results show that laser cladding layers is uniform and continuous .The cladding layers and basal bodies generate metallurgical bonding.