Lifetime in steel cord wire drawing dies of wcco cemented carbide containing TaNbC or Cr3C2

Masayuki Takada, Hideaki Matsubara, Yoshihiro Kawagishi

Research output: Contribution to journalArticle

Abstract

Wire-drawing dies and specimens of WCCo cemented carbides containing TaNbC or Cr3C2 were fabricated by hot isostatic pressing (HIP) at 1633 K in 40 MPa Ar and by annealing at 1593 K in vacuum. The lifetimes of steel cord wire-drawing dies were evaluated and their mechanical properties such as hardness, transverse rupture strength, and fracture toughness were examined. The lifetime of the drawing die was noted to have remarkably improved by annealing for WCCo cemented carbides containing both TaNbC and Cr3C2. The alloys containing TaNbC had longer lifetimes than those containing Cr3C2. The lifetime of a drawing die was weakly related to its hardness but appeared to have no correlation with its strength or toughness. The remarkable improvement in the drawing die lifetime resulting from annealing treatment after HIP and the longer lifetime of TaNbC-containing alloys can be understood in terms of the adhesion strength between the WC and Co phases being affected by the alloy content and heat treatment of cemented carbides.

Original languageEnglish
Pages (from-to)754-759
Number of pages6
JournalMaterials Transactions
Volume59
Issue number5
DOIs
Publication statusPublished - 2018

Keywords

  • Anneal
  • Cemented carbide
  • Drawing die
  • HIP
  • Steel cord wire

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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