Effect of laser surface hardening on a low carbon steel substrate wear and hardness

2021/11/25 by Furlani, Matheus Rodrigues, de Carvalho, Sheila Medeiros, de Lima, Milton Sergio Fernandes
#Applied Physics (physics.app-ph) #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci)

paper · doi:10.48550/arxiv.2111.13183

Abstract

Laser surface hardening (LSH) is an effective process to produce hard and wear resistant steel surfaces. This work produced hardened surfaces using a fiber laser in a bare (B. uncoated) and carbon-coated (C) conditions. The obtained hardness and microstructure were compatible to martensite (B) and cementite (C) major constituents. A low coefficient of friction was obtained using C-condition. The treated surface also presented little damage during a reciprocating wear against a hard metal sphere.

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