(Хмельницький національний університет, 2022) Poberezhnyi, M.M.; Kaplun, P.V.; Kolenov, S.O.; Побережний, М.М.; Каплун, П.В.; Каленов, С.О.
The article is devoted to the study of wear resistance of the surface layer of steels 40X and ШX15, when
rubbed in oil I-20. A comparison of the surface layer of samples of raw and nitrided steels, before and after the
tests. The study of the fine microstructure of the samples with the help of the LDFP microscope, allowed us to
conclude that the samples that were subjected to ionic nitriding, improved roughness. In turn, increased the area
of linear contact, reduced contact load. The graphic dependence of roughness indicators is constructed. After
testing, we can conclude that nitrided steel has a long service life, namely high hardness, resistance to abrasion,
durability and corrosion resistance. The mechanism for obtaining increased resources needs further study