The structure - phase state and microhardness of the surface layer of the VT1-0 titanium alloys treated by copper ions

M. V. Fedorischeva, M. P. Kalashnikov, A. V. Nikonenko, I. A. Bozhko, V. P. Sergeev

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The phase composition, the structure and the morphology of the surface of the VT1-0 titanium modified by copper ions with an energy of ∼0.5 … 2.5 keV and an ion current density of ∼2 … 20 mA/cm2 have been investigated by X-ray, SEM and TEM. It has been established that there are the intermetallic phases of the Cu-Ti equilibrium diagram in the surface layer during the treatment of the VT-10 titanium by copper ions. The modified surface layer in the cross section is divided into two layers up to 1 μm and from 1 μm up to 4.5–5.0 μm in thickness depending on the treatment time. Two-level micro and nanoporous nanocrystalline structure is formed in modified layer. It has been found that the phase structure and the morphology of the surface layers of the VT1-0 alloys depend on the treatment time.

Original languageEnglish
Pages (from-to)150-155
Number of pages6
JournalVacuum
Volume149
DOIs
Publication statusPublished - 1 Mar 2018

Keywords

  • Microhardness
  • Modification
  • Structure-phase state
  • Titanium
  • Treatment

ASJC Scopus subject areas

  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films

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