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 journalArticle

9 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

Fingerprint

Ion beams
ion beams
wear resistance
Wear resistance
hardness
Hardness
Coherent scattering
coatings
titanium carbides
Coatings
Titanium carbide
tungsten carbides
coherent scattering
Tungsten carbide
Coarsening
Chromium
coefficients
Crystallites
Phase composition
pretreatment

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

Cite this

Modification of hard alloy by the action of high power ion beams. / Uglov, Vladimir Vasilevich; Remnev, G. E.; Kuleshov, A. K.; Saltymakov, M. S.

In: Surface and Coatings Technology, Vol. 206, No. 5, 25.11.2011, p. 781-784.

Research output: Contribution to journalArticle

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AU - Kuleshov, A. K.

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