- 농도기울기를 갖는 초경합금/철 혼합분말 성형체의 진공소결시의 미세조직 변화
- ㆍ 저자명
- 양성철
- ㆍ 간행물명
- 한국분말야금학회지
- ㆍ 권/호정보
- 1996년|3권 4호|pp.266-270 (5 pages)
- ㆍ 발행정보
- 한국분말야금학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
The microstructure evolution during sintering of a compact being composed of three layers of (WC-15%Co)/Fe powder mixture with different Fe contents has been observed. The Fe contents in the respective (WC-15%Co)/Fe layers were varied by 20%. 50%, and 90% in sequence by volume from a top layer to a bot- tom layer. The sintering temperatures and times were varied from 110$0^{circ}C$ to 125$0^{circ}C$ and from 1 h to 4 h, The compact layer was not densified below 120$0^{circ}C$ in 4 h. Appropriate sintering temperature and time conditions for making a multi-layered hard metal compact were determined as 125$0^{circ}C$ and 3 h, respectively.