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- 진공 소결공정에 의한 고밀도 바인더리스 및 극저바인더 초경합금의 제조
- 민병준, 박용호, 이길근, 하국현
- Consolidation of Binderless and Low-Binder WC hardmetal by Vacuum Sintering
- Byoung-June Min, Young-Ho Park, Gil-Geun Lee, Gook-Hyeon Ha
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Journal of Korean Powder Metallurgy Institute 2007;14(5):315-319
DOI: https://doi.org/10.4150/KPMI.2007.14.5.315
1한국기계연구원 부설 재료연구소
2부산대학교 재료공학과
3부경대학교 신소재공학부
4한국기계연구원 부설 재료연구소
1Korea Institute of Materials Science, Engineering Powder Research Group Changwon
2Division of material Science and Engineering, Pusan National University
3Division of material Science and Engineering, Pukyong National University
4Korea Institute of Materials Science, Engineering Powder Research Group Changwon
2부산대학교 재료공학과
3부경대학교 신소재공학부
4한국기계연구원 부설 재료연구소
1Korea Institute of Materials Science, Engineering Powder Research Group Changwon
2Division of material Science and Engineering, Pusan National University
3Division of material Science and Engineering, Pukyong National University
4Korea Institute of Materials Science, Engineering Powder Research Group Changwon
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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/mm2 using binderless WC.
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