Computational study on grain growth in cemented carbides

J. Kishino, H. Nomura, S. G. Shin, H. Matsubara, T. Tanase

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

Micro-grained cemented carbides are widely applied to the tools such as solid endmills and micro-drills. The knowledge on grain growth of carbides is very important for manufacturing micro-grained cemented carbides. In the present study, continuous and discontinuous grain growth in such cemented carbides is investigated using the Monte Carlo computer simulation technique. The Ostwald ripening process (solution/re-precipitation) and the grain boundary migration process are assumed in the simulation as grain growth mechanism. The effects of liquid phase fraction, grain boundary energy and an implanted coarse grain are examined. The results of these simulations qualitatively agree with experimental ones and suggest that distribution of liquid phase and WC/WC grain boundary energy as well as contamination by coarse grain are important factors controlling discontinuous grain growth in cemented carbides.

Original languageEnglish
Pages (from-to)31-40
Number of pages10
JournalInternational Journal of Refractory Metals and Hard Materials
Volume20
Issue number1
DOIs
Publication statusPublished - 2002 Jan

Keywords

  • Cemented carbides
  • Grain boundary
  • Grain growth
  • Simulation
  • WC

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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