Structure, phase composition and mechanical properties of hard alloy treated by intense pulsed electron beams

Vladimir Vasilevich Uglov, A. K. Kuleshov, E. A. Soldatenko, N. N. Koval, Yu F. Ivanov, A. D. Teresov

Результат исследований: Материалы для журналаСтатья

48 Цитирования (Scopus)

Аннотация

Phase and structural changes in surface layers of WC-TiC-Co hard alloy treated by intense pulsed electron beams (IPEB) with electron energy of 20kV are studied. IPEB energy density absorbed by surface layer was 10-80J/cm 2, pulse duration was 100-200μs. IPEB action with energy density of 30-80J/cm 2 results in the formation of tungsten-supersaturated solid solution (Ti,W)C and transformation WC→W 2C caused by melting of surface layers and their subsequent rapid quenching from liquid. Electron beam treatment leads to the formation of layered structure. Changes of structure and phase composition result in the increase of surface microhardness in 1.5-3 times and in the reduction of friction coefficient in 2-3.5 times.

Язык оригиналаАнглийский
Страницы (с-по)2972-2976
Число страниц5
ЖурналSurface and Coatings Technology
Том206
Номер выпуска11-12
DOI
СостояниеОпубликовано - 15 фев 2012

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ASJC Scopus subject areas

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

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