激光成型钴基合金的组织及其耐磨性能研究  

Wear-resistance Property and Microstructure of Co-base Alloy Prepared by Laser Forming technology

作　　者：童文辉[1] 楚莎莎[1] 何波[1] 陈江[2] 

机构地区：[1]沈阳航空航天大学材料科学与工程学院,辽宁沈阳110000 [2]沈阳大陆激光技术有限公司,辽宁沈阳110000

出　　处：《铸造设备与工艺》2015年第5期28-31,共4页Foundry Equipment & Technology

摘　　要：采用激光熔覆技术制备出钴基合金,通过SEM、EDS和XRD对激光熔覆Co Cr W合金微观组织和相组成进行了分析,通过硬度及耐磨实验测试了合金的耐磨性能。结果表明:激光熔覆技术制备的钴基合金组成相主要是M6C,M23C6,Cr Co金属间化合物和基体,不同工艺参数下钴基合金中各相形貌发生变化;激光熔覆钴基合金的硬度及耐磨性能均低于铸态钴基合金。Co-base alloy was successfully prepared by the laser cladding technology,the microstructure and phase composition of the laser cladding alloys were analyzed by SEM、EDS and XRD,and the wear resistance of the alloy was tested by hardness and wear tests. The results show that the composition of Co-base alloy prepared by laser cladding technology is mainly M6 C,M23C6,Cr Co intermetallic compound and matrix,the morphology of phase of Co-base alloy changes under different process parameters. The hardness and wear resistance of Co-base alloy prepared by laser cladding technology are lower than that of the as-cast alloy.

关 键 词：激光熔覆 钴基合金 显微组织 硬度 耐磨性能 

分 类 号：TG146.16[一般工业技术—材料科学与工程]