Laser Modification: Increasing the Wear Resistance of Friction Surfaces

Abstract:

The article deals with topical issues of studying the physical, mechanical and tribological parameters of the surface layer of machine parts subjected to laser processing. Various options for modifying mating surfaces are evaluated and analyzed. The data of microstructural analysis and indicators of wear resistance are presented. A theoretical model of the wear of heat-strengthened surfaces is proposed, explaining the mechanism for increasing their wear resistance as a result of homogenization of the microstructure of a special surface layer with increased bearing capacity. It is experimentally confirmed that the greatest wear resistance is observed in friction units during mutual modification of mating surfaces.

• Periodical: Key Engineering Materials (Volume 836)
• Pages: 104-110
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.836.104
• Online since: March 2020
• Authors: V.I. Shastin*, S.K. Kargapol’tsev
• Keywords: Bearing Capacity, Friction Surfaces, Laser Modification, Wear Resistance

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