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Title Structure, Substructure, Hardness and Adhesion Strength of Multiperiod Composite Coatings MoN / CrN
Authors Grankin, S.S.
Beresnev, V.M.
Sobol, O.V.
Stolbovoy, V.A.
Novikov, V.Yu.
Lytovchenko, S.V.
Nyemchenko, U.S.
Meylehov, A.A.
Kovaleva, M.G.
Postelnik, A.A.
Toryanik, I.N.
Keywords Vacuum-arc coatings
Multilayer coating
Hard coatings
Vacuum-arc deposition
Type Article
Date of Issue 2015
URI http://essuir.sumdu.edu.ua/handle/123456789/43267
Publisher Sumy State University
License
Citation Grankin, S.S. Structure, Substructure, Hardness and Adhesion Strength of Multiperiod Composite Coatings MoN / CrN [Текст] / S.S. Grankin, V.M. Beresnev, O.V. Sobol et al. // Журнал нано- та електронної фізики. — 2015. — Т.7, №4. — 04050-1.
Abstract A comprehensive study of the influence of the thickness of the layers, Us and PN on the structural engineering to obtain high mechanical properties in multilayer composite MoN / CrN vacuum-arc coatings has been conducted by means of scanning electron microscopy with energy analysis, X-ray diffraction studies microindentation and scratch testing methods. It has been determined that in the studied PN  (2- 30)  10 – 4 Torr, the content of nitrogen in the coatings varies from 6.3 to 33 at. %, which leads even at the greatest nitrogen content to the formation of lower phase by nitrogen, -Mo2N and isostructural CrN with the vacant sites in the nitrogen sublattice. The increase of thickness of the layers applied on the substrate in a stationary state promotes the increase of nitrogen content. Along with this, the lowest microdeformation and the average size of crystallites are formed at Ub  – 300 V, which defines the achievement of greater hardness of 35 GPa and high adhesion strength, which resists the destruction, Lc5  187.6 N.
Appears in Collections: Журнал нано- та електронної фізики (Journal of nano- and electronic physics)

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