The effect of graphite coating on the composition, structure and microhardness of the surface of structural chromiumnickel steel during laser pulse processing

Abstract

Abstract In this work, the effect of laser pulsed radiation on the surface of 12Cr18Ni10T stainless steel with a layer of graphite coating previously applied to it was experimentally investigated. It was established that as a result of laser pulsed irradiation, a significant increase in the microhardness of the surface layer of the experimental samples occurs to H=9.56±0.1 GPa. The results of studying the elemental composition of the surface structure showed an increase in the concentration of diffused carbon in the surface layer of steel.