Please use this identifier to cite or link to this item: http://essuir.sumdu.edu.ua/handle/123456789/64237
Title: The influence of nitrogen pressure on the fabrication of the two-phase superhard nanocomposite (TiZrNbAlYCr)N coatings
Authors: Pohrebniak, Oleksandr Dmytrovych 
Smyrnova, Kateryna Vasylivna 
Kravchenko, Yaroslav Olehovych 
Beresnev, V.M.
Zukowski, P.V.
Bondarenko, G.G.
Keywords: Microstructure
Multielement
Chemical composition
Superhardness
Crystallites
Issue Year: 2018
Publisher: Elsevier
Citation: The influence of nitrogen pressure on the fabrication of the two-phase superhard nanocomposite (TiZrNbAlYCr)N coatings [Text] / A.D. Pogrebnjak, V.M. Beresnev, K.V. Smyrnova [et al.] // Materials Letters. — 2018. — №211(15). — С. 316-318.
Abstract: The multicomponent nitride coatings from TiZrNbAlYCr high entropy alloy (HEA) were fabricated using the vacuum-arc method. The effect of nitrogen pressure on the crystallite size, elemental and phase composition of (TiZrNbAlYCr)N coatings was investigated. A bias voltage applied to the substrate during the deposition process was −200 V. The partial nitrogen pressure was 0.05 Pa, 0.27 Pa, and 0.5 Pa. Body-centered cubic (BCC) lattice with crystallites of 15 nm in size was formed at the lowest pressure. An increase in the pressure led to the formation of the two-phase structure: BCC phase with crystallite size of 15 nm and face-centered cubic (FCC) phase with crystallite size of about 3.5 nm. The same two-phase state was found in coatings fabricated at 0.5 Pa, while the mean crystallite size was 7 nm. The maximum hardness of the deposited coatings was about 47 GPa.
URI: http://essuir.sumdu.edu.ua/handle/123456789/64237
Type: Article
Appears in Collections:Наукові видання (ЕлІТ)

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