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Structure and phase composition of tungsten alloys modified by compression plasma flows and high-intense pulsed ion beam impacts

  • V. I. Shymanski*
  • , V. V. Uglov
  • , N. N. Cherenda
  • , V. S. Pigasova
  • , V. M. Astashynski
  • , A. M. Kuzmitski
  • , H. W. Zhong
  • , S. J. Zhang
  • , X. Y. Le
  • , G. E. Remnev
  • *Corresponding author for this work
  • Belarusian State University
  • Tomsk Polytechnic University
  • Belarus Academy of Sciences
  • Beihang University

Research output: Contribution to journalArticlepeer-review

Abstract

The results of structure and phase composition change in tungsten after compression plasma flow and high-intensive pulsed ion beams impacts are discussed. The compression plasma flows with the absorbed energy in range 35–70 J/cm2 were used for the sub-surface modification. The preliminary Ti coating deposition on the tungsten surface allowed us to form W-Ti alloys by plasma flows treatment. The layer of the W-Ti alloy consists of solid solutions W(Ti) and β-Ti(W) as well as nitride phase (Ti,W)N. The high-intensive pulsed ion beam impact provides the tungsten carbide W2C formation in the sub-surface layer. When forming the W-Ti alloy the carbon ions implanted into the tungsten take part in the carbo-nitride (Ti,W)(N,C) formation without brittle W2C phase.

Original languageEnglish
Pages (from-to)43-52
Number of pages10
JournalApplied Surface Science
Volume491
DOIs
StatePublished - 15 Oct 2019

Keywords

  • Alloying
  • Compression plasma flow
  • Phase composition
  • Pulsed ion beam
  • Structure
  • Tungsten
  • W-Ti alloy

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