Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Consolidation of Binderless and Low-Binder WC hardmetal by Vacuum Sintering

진공 소결공정에 의한 고밀도 바인더리스 및 극저바인더 초경합금의 제조

  • Min, Byoung-June (Korea Institute of Materials Science, Engineering Powder Research Group Changwon) ;
  • Park, Young-Ho (Division of material Science and Engineering, Pusan National University) ;
  • Lee, Gil-Geun (Division of material Science and Engineering, Pukyong National University) ;
  • Ha, Gook-Hyeon (Korea Institute of Materials Science, Engineering Powder Research Group Changwon)
  • 민병준 (한국기계연구원 부설 재료연구소) ;
  • 박용호 (부산대학교 재료공학과) ;
  • 이길근 (부경대학교 신소재공학부) ;
  • 하국현 (한국기계연구원 부설 재료연구소)
  • Published : 2007.10.28
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Abstract

Pure WC or WC with low Co concentration less than 0.5 wt.% is studied to fabricate high density WC/Co cemented carbide using vacuum sintering and post HIP process. Considering the high melting point of WC, it is difficult to consolidate it without the use of Co as binder. In this study, the effect of lower Co addition on the microstructure and mechanical properties evolution of WC/CO was investigated. By HIP process after vacuum sintering, hardness and density was sharply increased. The hardness values was $2,800kgf/mm^2$ using binderless WC.

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References

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