Progress in laser cladding of cobalt-based alloys and prospects for their application in nuclear field

doi:10.13251/j.issn.0254-6051.2024.04.042

Abstract

Abstract: Laser cladding is an advanced surface modification technology with the advantages of small deformation, low dilution rate and high bonding strength between cladding layer and base material. Cobalt-based alloys have excellent wear resistance, corrosion resistance, high temperature resistance and other characteristics. Cobalt-based alloy cladding prepared by laser cladding technology can improve the working performance and service life of parts in special service environments (high temperature, high pressure, strong radiation). In addition, the laser cladding cobalt-based alloy technology has been highly concerned by experts and scholars at home and abroad, and widely used in nuclear industry, rail transportation, hydropower and other fields. The present paper analyzes the current research status of the laser cladding cobalt-based alloy technology at home and abroad, and summarizes the research results on the cobalt-based alloy material system, process parameters, performance research and industrial applications. Finally, an outlook for the application of laser cladding cobalt-based alloy technology in the nuclear field is given.

Key words: laser cladding, cobalt-based alloy, nuclear field, properties, industrial application

CLC Number:

TG115

Ren Weize, Duan Xuxing, Pei Zeyu, Chen Qing, Zhao Zirui. Progress in laser cladding of cobalt-based alloys and prospects for their application in nuclear field[J]. Heat Treatment of Metals, 2024, 49(4): 264-273.

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