Please use this identifier to cite or link to this item: http://essuir.sumdu.edu.ua/handle/123456789/64245
Title: The effects of Cr and Si additions and deposition conditions on the structure and properties of the (Zr-Ti-Nb)N coatings
Authors: Pohrebniak, Oleksandr Dmytrovych 
Bahdasarian, Artem Anatoliiovych 
Kravchenko, Yaroslav Olehovych 
Beresnev, V.M.
Nyemchenko, U.S.
Ivashchenko, V.I.
Shaimardanov, ZH.K.
Plotnikov, S.V.
Maksakova, O.
Keywords: Nitrides
Vacuum deposition
hardness
adhesion
First-principles bandstructure
Issue Year: 2017
Publisher: Elsevier
Citation: The effects of Cr and Si additions and deposition conditions on the structure and properties of the (Zr-Ti-Nb)N coatings [Text] / A.D. Pogrebnjak, A.A. Bagdasaryan, V.M. Beresnev [et al.] // Ceramics International. - 2017. - №43(1). - P. 771-782.
Abstract: In this study, (Zr-Ti-Nb)N, (Zr-Ti-Cr-Nb)N and (Zr-Ti-Cr-Nb-Si)N nitride coatings were obtained using a well-developed vacuum arc deposition. The systematical investigations demonstrate that the chemical composition, microstructure, and properties of the coatings intimately rely on the deposition parameters (pressure of working gas and substrate bias). Effects of Cr and Si additions on microstructure and mechanical properties of the (Zr-Ti-Nb)N coatings have been investigated using scanning electron microscopy (SEM) equipped with energy dispersive spectrum (EDS), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), transmission electron microscope (TEM), hardness measurements and adhesion testing. First-principles band-structure calculations and Gibbs-Rosenbaum triangle representation have been used to investigate the elemental and phase compositions in nitride coatings. The multi-component (Zr-Ti-Cr-Nb-Si)N and (Zr-Ti-Nb)N coatings are found to be a simple face-centered cubic (FCC) solid solution. For the coatings without Si, the structure is mainly composed of TiN fcc phase and Cr2N trigonal modification. The hardness values were in the ranges (24–42 GPa). The (Zr-Ti-Nb)N, (Zr-Ti-Cr-Nb)N coatings provided the best adhesive strength in different conditions. The (Zr-Ti-Cr-Nb-Si)N coatings exhibited the worst adhesive strength, which may be attributed to the relative low hardness.
URI: http://essuir.sumdu.edu.ua/handle/123456789/64245
Type: Article
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