Specific Features of the Microstructure and Properties of Multielement Nitride Coatings Based on TiZrNbAlYCr
- Autores: Pogrebnjak A.1, Beresnev V.2, Bondar O.1, Kravchenko Y.1, Zhollybekov B.3, Kupchishin A.4
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Afiliações:
- Sumy State University
- Karazin Kharkiv National University
- Berdakh Karakalpak State University
- Abai Kazakh National Pedagogical University
- Edição: Volume 44, Nº 2 (2018)
- Páginas: 98-101
- Seção: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/207203
- DOI: https://doi.org/10.1134/S1063785018020098
- ID: 207203
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Resumo
Multicomponent nanostructured coatings based on (TiZrNbAlYCr)N with a hardness as high as 47 GPa were obtained by cathodic arc deposition. The effect of partial nitrogen pressure PN (with constant bias potential Ub =–200 V applied to the substrate) on the phase-composition variation, the size of crystallites, and their relation to the microstructure and hardness was investigated. An increase in the nitrogen pressure resulted in the formation of two phases with characteristic BCC (the lattice period is 0.342 nm) and FCC lattices with averaged nanocrystallite sizes of 15 and 2 nm. At a high pressure of 0.5 Pa, crystallites in the FCC phase with a lattice period of 0.437 nm grew in size to ~7 nm. The hardness of deposited coatings with larger (3.5 nm) FCC-phase crystallites and smaller (7 nm) BCC-phase crystallites was enhanced considerably.
Sobre autores
A. Pogrebnjak
Sumy State University
Autor responsável pela correspondência
Email: alexp@i.ua
Ucrânia, Sumy, 40007
V. Beresnev
Karazin Kharkiv National University
Email: alexp@i.ua
Ucrânia, Kharkiv, 61022
O. Bondar
Sumy State University
Email: alexp@i.ua
Ucrânia, Sumy, 40007
Ya. Kravchenko
Sumy State University
Email: alexp@i.ua
Ucrânia, Sumy, 40007
B. Zhollybekov
Berdakh Karakalpak State University
Email: alexp@i.ua
Uzbequistão, Nukus, 230112
A. Kupchishin
Abai Kazakh National Pedagogical University
Email: alexp@i.ua
Cazaquistão, Almaty, 050010