Effect of Co - based Alloy on Properties of Laser Cladding Layer

2017 International Conference on Material Engineering and Manufacturing

Yang, Y.^1 ; Jiang, Z.P.^1 ; Li, H.Z.^1

College of Mechanical Engineering, Qingdao University of Technology, Qingdao, China^1

关键词: Cladding material;    Co-based alloys;    Compact structures;    Crack susceptibilities;    Friction and wear properties;    Laser cladding layer;    Macroscopic and microscopic;    Thin-wall structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/265/1/012021/pdf
DOI  :  10.1088/1757-899X/265/1/012021

来源: IOP

【 摘 要 】

A large number of laser cladding experiments have been carried out using 20CrMnTi steel as substrate and Co-based alloy as cladding material. The influence of Co-based alloy on the laser cladding properties of 20CrMnTi steel was studied by analyzing the macroscopic and microscopic characteristics of cladding crack susceptibility, dilution rate, microstructure and friction and wear properties. The results show that the high-power laser cladding of Co-based material can obtain a flat defect-free cladding layer with compact structure and low crack susceptibility. A multi-layer cladding strategy with variable power can be used to fabricate thin wall structures without collapse Parts, the surface smooth without pores.