Microstructure and Tribological Properties of TiB2/TiB/TiNx (x=1, 0.3)/Ti Composite Coating Produced on Pure Ti by Laser Surface Alloying
TiB2/TiB/TiNx (x-1, 0.3)/Ti composite coating was prepared on pure Ti by laser surface alloying by using powders of boron as starting materials. The composite coating was examined by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM) and scanning electron microscopy (SEM). The friction and wear properties of the composite coating were examined using a pin-on-disk tester under dry sliding wear condition. The results showed that the top surface of the composite coating was mainly composed of TiB2, TiB, TiNo.3, TiN and Ti phases, while the interface of the composite coating was composed of TiB and Ti phases. The composite coating showed sticklike structure near the top surface, and den-drites structure near the interface. The friction and wear test showed that the composite coating had better wear resistance than pure Ti due to their higher microhardness than that of pure Ti substrate.
pure Ti laser surface alloying TiB2 composite coating friction and wear property
Guo Chun Chen Jianmin Zhou Jiansong Zhao Jierong Wang Lingqian YuYoujun ZhouHuidi
Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China Graduate U Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
国际会议
西安
英文
344-349
2011-05-11（万方平台首次上网日期，不代表论文的发表时间）