Specific Features of the Microstructure and Properties of Multielement Nitride Coatings Based on TiZrNbAlYCr

A. D. Pogrebnjak, V. M. Beresnev, O. V. Bondar, Ya O. Kravchenko, B. Zhollybekov, A. I. Kupchishin

Research output: Contribution to journalArticle

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Abstract

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.

Original languageEnglish
Pages (from-to)98-101
Number of pages4
JournalTechnical Physics Letters
Volume44
Issue number2
DOIs
Publication statusPublished - 1 Feb 2018
Externally publishedYes

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crystallites
nitrides
coatings
microstructure
hardness
nitrogen
face centered cubic lattices
arcs

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Specific Features of the Microstructure and Properties of Multielement Nitride Coatings Based on TiZrNbAlYCr. / Pogrebnjak, A. D.; Beresnev, V. M.; Bondar, O. V.; Kravchenko, Ya O.; Zhollybekov, B.; Kupchishin, A. I.

In: Technical Physics Letters, Vol. 44, No. 2, 01.02.2018, p. 98-101.

Research output: Contribution to journalArticle

Pogrebnjak, A. D. ; Beresnev, V. M. ; Bondar, O. V. ; Kravchenko, Ya O. ; Zhollybekov, B. ; Kupchishin, A. I. / Specific Features of the Microstructure and Properties of Multielement Nitride Coatings Based on TiZrNbAlYCr. In: Technical Physics Letters. 2018 ; Vol. 44, No. 2. pp. 98-101.
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