Запис Детальніше

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

Electronic Archive of Sumy State University

Переглянути архів Інформація
 
 
Поле Співвідношення
 
Title Properties of Coatings Deposited from Filtered Vacuum Arc Plasma with HEA Cathode
 
Creator Belous, V.A.
Firstov, S.A.
Gorban, V.F.
Kuprin, A.S.
Ovcharenko, V.D.
Reshetnyak, E.N.
Tolmachova, G.N.
Kholomeev, M.G.
 
Subject Filtered vacuum arc
High-entropy alloy
Nanostructured coatings
Hardness
Thermal stability
Corrosion
 
Description 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.
 
Publisher Sumy State University
 
Date 2014-05-28T11:25:57Z
2014-05-28T11:25:57Z
2013
 
Type Article
 
Identifier 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
http://essuir.sumdu.edu.ua/handle/123456789/35323
 
Language en