Open AccessMicrostructure and Property of Fe-based Wear-resistant Alloy Coating Prepared by Laser Cladding on the Surface of Super High-speed Elevator Parts
Author(s) -
Wei Zhang,
Qiuhong Feng,
Eryi Wang,
Zhonghua Lu
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/585/1/012006
Subject(s) - materials science , microstructure , coating , composite number , cladding (metalworking) , carbide , wear resistance , alloy , metallurgy , composite material , service life
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 Cr 3 C 2 , TiC, VC, WC, Fe 3 C, 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.