OBRABOTKAMETALLOV Vol. 25 No. 2 2023 79 MATERIAL SCIENCE In-situ analysis of ZrN/CrN multilayer coatings under heating Andrey Vorontsov 1, a, Andrey Filippov 1, b,*, Nikolay Shamarin 1, c, Evgenij Moskvichev 1, d, Ol’ga Novitskaya 1, e, Evgenii Knyazhev 1, f, Yuliya Denisova 2, g, Andrei Leonov 2, h, Vladimir Denisov 2, i 1 Institute of Strenght Physics and Materials Sciences SB RAS, 2/4 pr. Academicheskii, Tomsk, 634055, Russian Federation 2 Institute of High Current Electronics SB RAS, 2/3 per. Academicheskii, Tomsk, 634055, Russian Federation a https://orcid.org/0000-0002-4334-7616, vav@ispms.ru, b https://orcid.org/0000-0003-0487-8382, andrey.v.fi lippov@yandex.ru, c https://orcid.org/0000-0002-4649-6465, shnn@ispms.ru, d https://orcid.org/0000-0002-9139-0846, em_tsu@mail.ru, e https://orcid.org/0000-0003-1043-4489, nos@ispms.tsc.ru, f https://orcid.org/0000-0002-1984-9720, zhenya4825@gmail.com, g https://orcid.org/0000-0002-3069-1434, yukolubaeva@mail.ru, h https://orcid.org/0000-0001-6645-3879, laa-91@yandex.ru, i https://orcid.org/0000-0002-5446-2337, volodyadenisov@yandex.ru Obrabotka metallov - Metal Working and Material Science Journal homepage: http://journals.nstu.ru/obrabotka_metallov Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science. 2023 vol. 25 no. 2 pp. 68–80 ISSN: 1994-6309 (print) / 2541-819X (online) DOI: 10.17212/1994-6309-2023-25.2-68-80 ART I CLE I NFO Article history: Received: 15 March 2023 Revised: 22 March 2023 Accepted: 28 March 2023 Available online: 15 June 2023 Keywords: Coating Nitrides Phase composition RSA CTE Stresses Funding The work was carried out with the fi nancial support of the Russian Federation represented by the Ministry of Science and Higher Education (project No. 075-15-2021-1348) within the framework of event No. 1.1.16. Acknowledgements Research were partially conducted at core facility “Structure, mechanical and physical properties of materials” ABSTRACT Introduction. Advanced hard coatings combine diff erent properties such as high hardness, wear resistance, corrosive resistance. At present, layer-by-layer deposited zirconium and chromium nitrides are promising hard coating materials. Currently, the multilayer coating process is not suffi ciently described in the literature to understand all the processes involved. The problem is the complexity of depositing thick layers of multilayer, multicomponent coatings with diff erent physical characteristics of the coating components. First and foremost this concerns the coeffi cient of linear thermal expansion (CTE). Since the coating and operating processes consist in heating, coating components with diff erent CTE will be susceptible to cracking, further failure and product failure over time. The purpose of work is in-situ study of multilayer ZrN/CrN coatings by X-ray analysis using synchrotron radiation and qualitative microstress behavior of multilayer coatings formed by plasmaassisted vacuum-arc method on substrate of alloy VK8 (92% WC–8% Co) under heating up to 750°С. Research methodology. Samples of coatings made of chromium and zirconium nitrides deposited on a substrate of the hard alloy VK8 are investigated. The basic method is the X-ray analysis using synchrotron radiation. We used the most common techniques to study the characteristics of multilayered coatings such as the coeffi cient of linear thermal expansion and the qualitative measurement of microstresses. Results and discussion. The result is the ability to determine changes in the characteristics of multilayer coatings during heating, such as changes in the crystal lattice parameter of each of the coating components separately, the possibility to determine the coeffi cient of linear thermal expansion of the coating components and the qualitative measurement of microstresses, as well as providing the opportunity, based on the analysis, to form recommendations for further application of the technology of applying multilayer coatings with given characteristics. For citation: VorontsovA.V., FilippovA.V., Shamarin N.N., Moskvichev E.N., Novitskaya O.S., Knyazhev E.O., DenisovaYu.A., LeonovA.A., Denisov V.V. In-situ analysis of ZrN/CrN multilayer coatings under heating. Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science, 2023, vol. 25, no. 2, pp. 68–80. DOI: 10.17212/1994-6309-2023-25.2-68-80. (In Russian). ______ * Corresponding author Vorontsov Andrey V., Ph.D. (Engineering), Junior researcher Institute of Strenght Physics and Materials Sciences SB RAS, 2/4 pr. Academicheskii, 634055, Tomsk, Russian Federation Tel.: 8 (983) 239-34-17, e-mail: vav@ispms.ru References 1. Liu J., Hao Z., Cui Z., Ma D., Lu J., Cui Y., Li C., Liu W., Xie S., Hu P., Huang P., Bai G., Yun D. Oxidation behavior, thermal stability, and the coating/substrate interface evolution of CrN-coated Zircaloy under hightemperature steam. Corrosion Science, 2021, vol. 185, p. 109416. DOI: 10.1016/j.corsci.2021.109416.
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