Effect of Process Parameters on Properties of NiCrAl20%WC Cladding Layer

Abstract

NiCrAl/20%WC coatings were prepared by laser cladding on 45 steel under different technological parameters. The effects of technological parameters on the microstructure, microstructure, hardness and wear resistance were investigated. The results show that with the increase of the scanning speed, the height, width, depth and dilution rate of the cladding layer gradually decrease, the microstructure becomes smaller and smaller, the hardness gradually increases, and the wear amount decreases first and then increases, and the wear amount is the least when the scanning speed is 600 mm/min. With the increase of laser power, the height, width, depth and dilution rate of cladding layer gradually increase. The hardness gradually decreases; The wear decreases first and then increases, and the wear is the least when the laser power is 1.2 kW.

Keywords:

• Laser cladding
• process parameters
• wear-resisting performance

Additional information

Funding

The work was supported by Xi’an Science and Technology Project No. 22GXFW0120-5, and the Team of Shaanxi Intelligent Remanufacturing Technology; Natural Science Basic Research Program of Shaanxi No.2022JM-187.