Thermal Stability of the Structure and Phase Composition of Titanium Treated with Compression Plasma Flows

V. I. Shymanski, N. N. Cherenda, V. V. Uglov, V. M. Astashynski, A. M. Kuzmitski

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Abstract

The results of studying the structure and phase composition of the surface layer of commercial pure VT1-0 titanium treated with compression plasma flows in nitrogen atmosphere and annealed in the temperature range of 400–900°C for 1 h are presented. Using the X-ray diffraction method, the α-Ti(O) solid solution is found to form in the titanium surface layer at 500°C, without pretreatment with plasma, and to transform into the titanium oxide TiO2 (rutile) phase at 600°C. Pretreatment of titanium with compression plasma flows promotes the formation of α-Ti(N) solid solution decreasing the rate of surface oxidation and increasing the initial temperature of rutile formation to 700°C, which indicates enhancement of the thermal stability of this structure.

Original languageEnglish
Pages (from-to)710-716
Number of pages7
JournalJournal of Surface Investigation
Volume12
Issue number4
DOIs
Publication statusPublished - 1 Jul 2018

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Keywords

  • compression plasma flows
  • oxidation
  • phase composition
  • rutile
  • thermal annealing
  • titanium
  • titanium oxide

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

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