Microstructure, heat transfer, and melting of the layers of hard alloy containing titanium and tungsten carbides in conditions of high-power pulsed treatment

A. K. Kuleshov, A. S. Yakushevich, Vladimir Vasilevich Uglov, V. M. Astashinskii, Nikolay Nikolaevich Koval, Yu F. Ivanov, E. A. Krutilina

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The influence of energy density and pulse count under the effect by compression plasma flows (CPFs) and high-current electron beams (HCEBs) on the melting depth and microstructure of modified layers of T15K6 alloy is investigated. A method of computer modeling of heat transfer under such high-power effects on the hard alloy taking into account the bulk ratio of alloy components, variations in their thermal characteristics with an increase in temperature, difference in the pulse shape, and corresponding spatial energy release is proposed. The comparison of calculated melting depths of alloy components for HCEBs and CPFs with the experimental data in a range of energy densities of 30–50 J/cm2 showed their good agreement. The interrelation of the features of the thermal effect of HCEBs and CPFs with the melting depth and microstructure of modified layers of T15K6 alloy is revealed.

Original languageEnglish
Pages (from-to)345-352
Number of pages8
JournalRussian Journal of Non-Ferrous Metals
Volume56
Issue number3
DOIs
Publication statusPublished - 21 May 2015

Keywords

  • electron beams
  • hard alloy
  • microstructure
  • pulsed plasma flows
  • simulation of heat transfer

ASJC Scopus subject areas

  • Mechanics of Materials
  • Surfaces, Coatings and Films
  • Metals and Alloys

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