Actual Problems in Machine Building 2016 No. 3

Actual Problems in Machine Building. 2016. N 3 Materials Science in Machine Building ____________________________________________________________________ 418 DIFFUSION CARBIDE COATINGS ON STEEL WITH 0,8 PERCENT OF CARBON Butukhanov V.A. , Engineer, e-mail: butuhanov_vyacheslav@mail.ru Lygdenov B.D. , D.Sc. (Engineering), Associate Professor, e-mail: lygdenov59@mail.ru East Siberia State University of Technology and Management, 40V Kluchevskaya str, Ulan-Ude, 670013, Russian Federation Abstract The properties of carbide coatings on carbon steel were studied in this paper. Process was made in saturating mixtures with the use of iron-alloy powders. There were various ratios of these powders. It is found that the two-component coating have higher wear resistance under dry sliding friction than one component coatings. The mathematical modeling was carried out with simplex planning method. The composition of the mixture which provides the maximum durability was determined Keywords thermochemical treatment, diffusion layers, microhardness, wear resistance, mathematical modeling Funding Work is executed at financial support of grant of President of Russian Federation for state support of young Russian scientists – candidates of Sciences (Competition – MK-2015)