Open AccessSTRUCTURE OF MULTI-ELEMENT COATINGS BEFORE AND AFTER EXPOSURE TO LASER RADIATION
Author(s) -
V. Yu. Yurov,
С.А. Гученко,
К.М. Маkhаnov
Publication year - 2020
Publication title -
chronos journal
Language(s) - English
Resource type - Journals
ISSN - 2658-7556
DOI - 10.31618/2658-7556-2020-19
Subject(s) - coating , materials science , laser , indentation hardness , dislocation , atmosphere (unit) , argon , radiation , composite material , laser treatment , irradiation , microstructure , optics , metallurgy , chemistry , physics , organic chemistry , nuclear physics , thermodynamics
It is shown in this work that the effect of laser action on nanostructured coatings can be quite diverse. In this case, the decisive role is played by the initial structure of the coating, which sets the mechanism and direction of its transformation under external, including laser, influences. It is shown that for a CrMnSiCuFeAlTi coating in an argon atmosphere, the friction coefficient after laser treatment decreases, while the microhardness increases. We associate the first effect with a decrease in the roughness of the coating when it is melted by a laser beam. The second effect is due to the formation of the dislocation structure of the coating upon sharp heatingcooling.