OBRABOTKAMETALLOV MATERIAL SCIENCE Vol. 24 No. 1 2022 Investigation of the structural-phase state and mechanical properties of ZrCrN coatings obtained by plasma-assisted vacuum arc evaporation Andrey Filippov 1, а,*, Nikolay Shamarin 1, b, Evgenij Moskvichev1, с, Ol’ga Novitskaya1, d, Evgenii Knyazhev1, e, Yuliya Denisova2, f, Andrei Leonov2, g, Vladimir Denisov2, h 1 Institute of Strenght Physics and Materials Sciences SB RAS, 2/4, pr. Akademicheskii, Tomsk, 634055, Russian Federation 2 Institute of High Current Electronics SB RAS, 2/3 Akademichesky Avenue, Tomsk, 634055, Russian Federation a https://orcid.org/0000-0003-0487-8382, andrey.v.fi lippov@yandex.ru, b https://orcid.org/0000-0002-4649-6465, shnn@ispms.ru, c https://orcid.org/0000-0002-9139-0846, em_tsu@mail.ru, d https://orcid.org/0000-0003-1043-4489, nos@ispms.tsc.ru, e https://orcid.org/0000-0002-1984-9720, zhenya4825@gmail.com, f https://orcid.org/0000-0002-3069-1434, yukolubaeva@mail.ru, g https://orcid.org/0000-0001-6645-3879, laa-91@yandex.ru, h https://orcid.org/0000-0002-5446-2337, volodyadenisov@yandex.ru Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science. 2022 vol. 24 no. 1 pp. 87–102 ISSN: 1994-6309 (print) / 2541-819X (online) DOI: 10.17212/1994-6309-2022-24.1-87-102 Obrabotka metallov - Metal Working and Material Science Journal homepage: http://journals.nstu.ru/obrabotka_metallov ART I CLE I NFO Article history: Received: 10 December 2021 Revised: 28 December 2021 Accepted: 28 January 2022 Available online: 15 March 2022 Keywords: Coating Morphology Nitrides Structure Phase composition Funding The work was carried out with fi nancial support from the Russian Federation represented by Ministry of Science and Higher Education (Project No. 075-152021-1348) 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. Modern technologies allow the synthesis of nanostructured coatings from multiple chemical elements to combine different physical, mechanical, and chemical properties in one coating. Promising in this respect are coatings formed via layer-by-layer deposition of zirconium and chromium nitrides. The deposition of various chemical elements on various substrates requires separate studies in order to produce high-strength and wear-resistant coatings. The purpose of this work is to study the structuralphase state and mechanical properties of ZrCrN coatings formed by plasma-assisted vacuum arc evaporation. Materials and methods. The investigation is performed on specimens comprising VK8 hard alloy substrates with zirconium and chromium nitride coatings as well as with multilayer ZrCrN coatings. The methods used are confocal laser scanning microscopy, X-ray diffraction analysis, high-resolution scanning electron microscopy, nanoindentation, and scratching. Results and discussion. The experimental results obtained showed that the mode of multilayer ZrCrN coating evaporation greatly affects the structure, morphology, surface roughness, and mechanical properties of the coatings. In particular, by varying the substrate rotation speed during coating deposition it is possible to control the deposition time of each coating layer and thereby modify the layer properties. Conclusions. The investigation results showed that variation of the evaporation conditions allows one to obtain a ZrCrN coating with a high nanohardness of 45 GPa on a VK8 alloy substrate. Analysis of mechanical test results indicate good adhesion between the studied coatings and the substrate. Scratch tests revealed that fracture of CrN and ZrN coatings occurs by the cohesive mechanism, and the surface of ZrCrN coatings exhibits uniform scratches without any signs of fracture. Based on the results obtained, ZrCrN-2…ZrCrN-4 coatings can be recommended for use as hard and wear-resistant coatings. For citation: Filippov A.V., Shamarin N.N., Moskvichev E.N., Novitskaya O.S., Knyazhev E.O., Denisova Yu.A., Leonov A.A., Denisov V.V. Investigation of the structural-phase state and mechanical properties of ZrCrN coatings obtained by plasma-assisted vacuum arc evaporation. Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science, 2022, vol. 24, no. 1, pp. 87–102. DOI: 10.17212/1994-6309-2022-24.1-87-102. (In Russian). ______ * Corresponding author Filippov Andrey V., Ph.D. (Engineering), Senior Researcher Institute of Strenght Physics and Materials Sciences SB RAS 2/4, pr. Akademicheskii, 634055, Tomsk, Russian Federation Tel.: 8 (999) 178-13-40, e-mail: andrey.v.fi lippov@yandex.ru
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