Properties of Coatings Deposited from Filtered Vacuum Arc Plasma with HEA Cathode

Belous, V.A.; Firstov, S.A.; Gorban, V.F.; Kuprin, A.S.; Ovcharenko, V.D.; Reshetnyak, E.N.; Tolmachova, G.N.; Kholomeev, M.G.

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Title	Properties of Coatings Deposited from Filtered Vacuum Arc Plasma with HEA Cathode
Authors	Belous, V.A. Firstov, S.A. Gorban, V.F. Kuprin, A.S. Ovcharenko, V.D. Reshetnyak, E.N. Tolmachova, G.N. Kholomeev, M.G.
ORCID
Keywords	Filtered vacuum arc High-entropy alloy Nanostructured coatings Hardness Thermal stability Corrosion
Type	Conference Papers
Date of Issue	2013
URI	http://essuir.sumdu.edu.ua/handle/123456789/35323
Publisher	Sumy State University
License	Copyright not evaluated
Citation	Properties of Coatings Deposited from Filtered Vacuum Arc Plasma with HEA Cathode [Текст] / V.A. Belous, S.A. Firstov, V.F. Gorban et al. // Nanomaterials: Applications & Properties (NAP-2013) : 3-rd International conference, Alushta, the Crimea, Ukraine, September 16-21, 2013 / Edited by: A. Pogrebnjak. - Sumy : Sumy State University, 2013. - V.2, No2. - 02FNC12
Abstract	Ti-V-Zr-Nb-Hf metallic and nitride films were deposited by filtered vacuum arc plasma from a single equiatomic HEA cathode. The composition, microstructure, mechanical properties, thermal stability and corrosion properties were investigated. The deposited metallic film has a two-phase structure with bcc and hcp-lattice. The nitride films were found to have only an fcc structure. All coatings have nano-grained structures, with grain sizes 5 nm for metallic and 36 nm for nitride. The nitride coatings have a compressive stress of around – 12,5 GPa, high hardness ~ 40 GPa and elastic modulus ~ 450 GPa. After annealing in vacuum in range 400-1200 °C, 3 h for every temperature, hardness decreased to 25 GPa. It was found that both the metallic and nitride coatings exhibited their best corrosion resistance than steel samples in a 3,5 wt. % NaCl solution. The metallic coatings showed better corrosion resistance than the nitride coatings. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35323
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