Obrabotka Metallov 2018 Vol. 20 No. 1

OBRABOTKAMETALLOV Vol. 20 No. 1 2018 78 MATERIAL SCIENCE References 1. Fan W., Bai Y. Review of suspension and solution precursor plasma sprayed thermal barrier coatings. Ceramics International , 2016, vol. 42, iss. 13, pp. 14299–14312. doi: 10.1016/j.ceramint.2016.06.063. 2. Bobzin K. High-performance coatings for cutting tools. CIRP Journal of Manufacturing Science and Technology , 2017, vol. 18, pp. 1–9. doi: 10.1016/j.cirpj.2016.11.004. 3. Ephremenkov E.A., Kobza E.E., Efremenkova S.K. Force analysis of double pitch point cycloid drive with intermediate rolling elements and free retainer. Applied Mechanics and Materials , 2015, vol. 756, pp. 29–34. doi: 10.4028 /www.scientific.net/AMM.756.29. 4. Santecchia E., Hamouda A.M.S., Musharavati F., Zalnezhad E., Cabibbo M., Spigarelli S. Wear resistance investigation of titanium nitride-based coatings. Ceramics International, 2015, vol. 41, iss. 9, pp. 10349–10379. doi: 10.1016/j.ceramint.2015.04.152. Model of the Formation of the Multilayer Coating Composition During Plasma-assisted Deposition Sergey Shanin a, * , Egor Efremenkov b National Research Tomsk Polytechnic University, 30 Lenin Avenue, Tomsk, 634050, Russian Federation a http://orcid.org/0000-0002-9563-2830 , shanin_s@mail.ru , b http://orcid.org/0000-0001-6617-9152 , ephrea@mail.ru Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science. 2018 vol. 20 no. 1 pp. 69–79 ISSN: 1994-6309 (print) / 2541-819X (online) DOI: 10.17212/1994-6309-2018-20.1-69-79 Obrabotka metallov - Metal Working and Material Science Journal homepage: http://journals.nstu.ru/obrabotka_metallov ARTICLE INFO Article history : Received: 06 December 2017 Revised: 23 December 2017 Accepted: 15 February 2018 Available online: 15 March 2018 Keywords : Plasma spraying Coating deposition Cross-effects Related model Funding : The work is carried out within the framework of the TPU competitive recovery program among the world’s leading research centers. ABSTRACT Introduction . A modern technical equipment is working in the conditions of high temperature and stress. The technology development demands to create new material with specific properties. Magnetron and vacuum-arc methods of coatings formation using high-melting-point materials have wide expansion for the improvement of detail performance properties. Mathematical modeling is a good alternative to detailed experimental research, allowing to study individual phenomena at different stages of coating formation and to predict the composition and macroscopic properties of the coating change with varying technological conditions. And this, in turn, allows optimizing the technological process. The purpose of the work: to determine the degree of influence of cross effects, as well as the mutual influence of the transfer processes on the formation of the multilayer coating composition when plasma- assisted deposition to the substrate. Mathematical modeling of the coating growth process taking into account combination of physical and chemical stages is conducted. Methods of research are computational methods. In the paper, coupled model of formation of multilayer coating on the surface of cylindrical detail by plasma-assisted deposition is presented. The model considers such effects, as thermal diffusion, diffusion thermal conductivity, the mass transfer by action of stress gradient and formation of chemical compounds. Results and Discussion. The influence of cross-effects, as well as the mutual influence of the transport processes in the formation of the multilayer coating deposited from the plasma, is theoretically investigated. It is shown that the composition of the plasma affects the evolution of the coating composition. It is determined that taking into account the mass and heat transfer due to the stress gradient has a noticeable effect on the coating composition. It is found that for the selected systems, thermal diffusion and diffusion thermal conductivity affect the distribution of concentrations only at the initial stage of the coating deposition process. For citation: Shanin S.A., Efremenkov E.A. Model of the formation of the multilayer coating composition during plasma-assisted deposition. Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science , 2018, vol. 20, no. 1, pp. 69–79. doi: 10.17212/1994-6309-2018-20.1-69-79. (In Russian). ______ * Corresponding author Shanin Sergey A. , Ph.D. (Physics and Mathematics), National Research Tomsk Polytechnic University, 30 Lenin Avenue, 634050, Tomsk, Russian Federation, Tel.: 8 (983) 230-20-99, e-mail: shanin_s@mail.ru