Modification of hard alloy by the action of high power ion beams

Vladimir Vasilevich Uglov, G. E. Remnev, A. K. Kuleshov, M. S. Saltymakov

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Phase composition, sizes of coherent scattering regions, hardness and friction coefficient of WC-TiC-Co hard alloy and "(Ti,Cr)N coating-on-alloy" system treated by high power ion beams (HPIB) are studied. HPIB treatment was carried out with power densities from 4 to 16J/cm2. The effect of HPIB pretreatment (4J/cm2) before deposition procedure was studied. HPIB action with energy densities of 8-16J/cm2 on hard alloy results in partial fusion of tungsten and titanium carbides. The hardness of surface layer increases by two times and wear resistance improves. HPIB action on "coating-on-alloy" system leads to coarsening of (Ti,Cr)N crystallites, partial decomposition of (Ti,Cr)N and precipitation of chromium phase. Preliminary HPIB treatment (4J/cm2) followed by HPIB impact (16J/cm2) provides best effect on wear-resistance of (Ti,Cr)N solid solution on hard alloy.

Original languageEnglish
Pages (from-to)781-784
Number of pages4
JournalSurface and Coatings Technology
Volume206
Issue number5
DOIs
Publication statusPublished - 25 Nov 2011

Keywords

  • (Ti,Cr)N coating
  • Pulsed ion beam

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

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