Microstructure and Property of Fe-based Wear-resistant Alloy Coating Prepared by Laser Cladding on the Surface of Super High-speed Elevator Parts

5th Annual International Workshop on Materials Science and Engineering

Zhang, Wei^1 ; Feng, Qiuhong^1 ; Wang, Eryi^2 ; Zheng, Luyu^1

Department of Materials Technology, Zhejiang Institute of Mechanical and Electrical Engineering, Hangzhou

310053, China^1

Zhejiang Machinery and Electrical Group, Hangzhou

310002, China^2

关键词: Cladding material;    Microstructure and properties;    Network likes;    Research results;    Super high speed elevators;    Surface strengthening;    Wear resistant;    Wear resistant alloy;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/585/1/012006/pdf
DOI  :  10.1088/1757-899X/585/1/012006

来源: IOP

【 摘 要 】

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.