An Electron-Microscopy Analysis of the Gradient Structure Formed in Titanium During Deposition of a Hard Coating

Y. F. Ivanov, V. V. Shugurov, O. V. Krysina, E. A. Petrikova, O. V. Ivanova, O. S. Tolkachev

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A titanium nitride coating 0.5 μm in thickness is deposited on specimens of VT1-0 technical-grade titanium using a vacuum-arc, plasma-assisted process. The formation of a multilayer, multiphase highly defective structure is observed, whose thickness reaches up to 40 μm. Surface and transition layers are determined from the morphological characteristics. It is shown that the surface layer (300–350 nm thick), where the major phase is TiN, possesses polycrystalline structure (crystallite size is 20–50 nm). The transition layer, whose major phase is Ti2N, is divided into two sublayers. The sublayer immediately adjacent to the surface layer has columnar structure (transverse cross section of the columns is 50–80 nm). The sublayer bordering the bulk of the specimen is formed by quasi-equiaxed crystallites (150–280 nm). The main reason for formation of the multilayer, multiphase structure is thought to be the multistage character of material modification under conditions of common vacuum.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalRussian Physics Journal
Volume60
Issue number5
DOIs
Publication statusAccepted/In press - 1 Sep 2017

Fingerprint

surface layers
electron microscopy
transition layers
titanium
coatings
gradients
vacuum
titanium nitrides
plasma jets
crystallites
grade
cross sections

Keywords

  • hard nitride coating
  • multilayer gradient structure
  • phase composition
  • properties
  • technically pure titanium

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

An Electron-Microscopy Analysis of the Gradient Structure Formed in Titanium During Deposition of a Hard Coating. / Ivanov, Y. F.; Shugurov, V. V.; Krysina, O. V.; Petrikova, E. A.; Ivanova, O. V.; Tolkachev, O. S.

In: Russian Physics Journal, Vol. 60, No. 5, 01.09.2017, p. 1-9.

Research output: Contribution to journalArticle

Ivanov, Y. F. ; Shugurov, V. V. ; Krysina, O. V. ; Petrikova, E. A. ; Ivanova, O. V. ; Tolkachev, O. S. / An Electron-Microscopy Analysis of the Gradient Structure Formed in Titanium During Deposition of a Hard Coating. In: Russian Physics Journal. 2017 ; Vol. 60, No. 5. pp. 1-9.
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