Structure-phase transformation in surface layers of hard alloy as a result of action of high-current electron beams

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

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This work discusses the influence of pulse action by low-energy high-current electron beams on the structure-phase state of near-surface layers of T15K6 hard alloy. It is found that, upon an increase in energy density as a consequence of melting of the alloy carbides, there occurs formation of tungsten saturated hard alloy (Ti, W)C and the transformation WC → W2C upon crystallization. Depending on the radiation mode, there occurs formation of a cellular (typical for "explosive" crystallization) or dendrite structure of the surface. These structure-phase transformations result in up to a threefold increase in the microhardness of the surface of the irradiated material.

Original languageEnglish
Pages (from-to)350-357
Number of pages8
JournalJournal of Surface Investigation
Volume5
Issue number2
DOIs
Publication statusPublished - 1 Apr 2011

Keywords

  • explosive crystallization
  • hard alloy
  • low-energy high-current electron beam
  • microhardness
  • structure-phase transformations

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

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