- (W,Ti)C계 초경합급의 미세조직 및 경도에 미치는 금속 결합재 조성의 영향
- ㆍ 저자명
- 이경호,박희섭,장종준,홍순형,Lee. Kyong-H.,Park. Hee-S.,Jang. Jong-J.,Hong. Soon-H.
- ㆍ 간행물명
- 한국분말야금학회지
- ㆍ 권/호정보
- 2007년|14권 3호|pp.208-214 (7 pages)
- ㆍ 발행정보
- 한국분말야금학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
The microstructure and hardness of (W,Ti)C cemented carbides with a different metallic binder composition of Ni and Co fabricated by powder technology were investigated. The densifications of the prepared materials were accomplished by using vacuum sintering at $1450^{circ}C$. Nearly full dense (W,Ti)C cemented carbides were obtained with a relative density of up to 99.7% with 30 wt.% Co and 99.9% with 30 wt.% Ni as a metallic binder. The average grain size of the (W,Ti)C-Co and the (W,Ti)C-Ni was decreased by increasing the metallic binder content. The hardness of the dense (W,Ti)C-15 wt%Co and (W,Ti)C-15 wt%Ni, was greater than that of the other related cemented carbides; in addition, the cobalt-based cemented carbides had greater hardness values than the nickel-based cemented carbides.