Microstructure and Wear Resistance of Laser Cladded Coatings on Copper Substrate
In order to improve the wear resistance of continuous casting crystallizer, Co-based alloy coatings were prepared on copper substrate by a pulsed Nd:YAG laser. Scanning electron microscopy, X-ray diffraction, microhardness and wear resistance tesing were employed to study the microstructure and properties of the cladding coatings. The results show that the friction coefficient and wear mass loss of the cladded coating with the volumn ratio of Stellite X-40: TiC: CaF2=60: 10:30 are both the smallest; the average microhardness of the cladded coating is 496.2HVo.2 which is about five times higher than that of the substrate.
laser cladding microstructure wear resisitance. microhardness
Wang Wenyan Dong Xiaoming Xu Jing Xie Jiagpei
College of Materials Science and Engineering, Henan University of Science andTechnology, Luoyang 471003, China Henan Key Laboratory of Advanced Non-ferrous Metals, Luoyang 471003, China
国际会议
69th World Foundry Congress(第69届世界铸造会议 WFC 2010)
杭州
英文
1078-1081
2010-10-16（万方平台首次上网日期，不代表论文的发表时间）