Aiming at the problem of poor wear-resistance of wear-resistant parts used in super high-speed elevator,the experiments of laser cladding to prepare composite coating were made.Fe-Cr-Ti-V-Mo-C powder was used as cladding material.The microstructure and property of composite coating were tested by relevant equipment.The research results show that the composite coating is made up of Cr3C2,TiC,VC,WC,Fe3C,Fe-based solid solution.The carbides present as network-like and distribute in solid solution.The average hardness of composite coating is 743 HV0.2,which is 91% higher than that of matrix.Using this technology to the surface strengthening of elevator parts,the wear resistance and service life can be greatly improved.
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