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HE Qingkun, WANG Yong, ZHAO Weimin, CHENG Yiyuan. Interface microstructure and wear properties of TiC-Ni-Mo coatings prepared by in-situ fabrication of laser cladding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2009, (1): 77-80100.
Citation: HE Qingkun, WANG Yong, ZHAO Weimin, CHENG Yiyuan. Interface microstructure and wear properties of TiC-Ni-Mo coatings prepared by in-situ fabrication of laser cladding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2009, (1): 77-80100.

Interface microstructure and wear properties of TiC-Ni-Mo coatings prepared by in-situ fabrication of laser cladding

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  • Received Date: July 24, 2008
  • TiC-Ni-Mo composite coating was prepared by in-situ fabrication of laser cladding. The interface microstructure and wear properties of the coating was investigated by means of EPMA, TEM and wear tests. The results show that, adding 5% Mo into the coating could improve uniformity, rigidity, wear resistance, refine TiC grains, reduce friction coefficients and exist orientation relationship: (001)TiC//(111)γ-Ni. The rigidity and wear resistance of coating decrease with the content of 10 % Mo. There are many directional dislocations inside TiC phase and dislocation tangles inside γ-Ni-binder phase. The wear mechanism of the coating is anti-wear action of reinforcing phases. The wear morphology is short and shallow furrows.
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