WC 첨가 방법에 따른 Ti(CN)-Co/Ni 계 서멧트의미세조직 및 특성변화
Microstructural Evolution and Properties in Ti(CN)-Co/Ni Cermet Depending on the Starting Material for Incorporation of WC
1
조회
0
다운로드
0
인용
0
참고문헌
초록
Abstract
In the Ti(CN)-Co/Ni cermet, WC is an effective additive for increasing sinterability and mechanical properties such as toughness and hardness. In this work, WC, (WTi)C and (WTi)(CN) were used as the source of WC and their effects were investigated in the respect of microstructural evolution and mechanical properties. Regardless of the kinds of WC sources, the hard phase with dark core and bright rim structure was observed in the Ti(CN)-Co/Ni cermet under the incorporation of relatively small amount of WC. However, hard phases with bright core began to appear and their frequency increased with the increase of all kinds of WC source addition. The ratio of bright core to dark one in the (TiW)(CN)-Co/Ni cermet was greatest under the incorporation of (WTi)C compared at the same equivalent amount of WC. The mechanical properties were improved with the addition of WC irrespective of the kinds of sources, but the addition of (WTi)(CN) was less effective for the increase of fracture toughness.
참고문헌 (15)
- P.Ettmayer, "Int. J. Refract. Met. & Hard Mater", 13, pp.343~ (1995)
- S.Zhang, "Mater. Sci. Eng. A", 163, pp.141~ (1993)
- T.-J.Chung, "J. Kor. Ceram.Soc", 42, pp.171~ (2005)
- J.Zackrisson, "Int. J. Refract. Met. &Hard Mater", 17, pp.265~ (1999)
- S.-Y.Ahn, "Scripta Mater", 55, pp.1015~ (2006)
- S.-Y.Ahn, "J. Am. Ceram. Soc", 83, pp.1489~ (2000)
- S.-Y.Ahn, "J. Am. Ceram. Soc", 84, pp.843~ (2001)
- S.-Y.Ahn, "Int. J. Refract. Met. & Hard Mater", 19, pp.539~ (2001)
- S.-Y.Ahn, "J. Kor. Ceram. Soc", 35, pp.1316~ (1998)
- J.K.Yang, "Mater. Sci. Eng. A", 209, pp.213~ (1996)
- W.-T.Kwon, "J. Mater. Proc.Tech", 166, pp.9~ (2005)
- D.K.Shetty, "J. Mater. Sci", 20, pp.1873~ (1985)
- H.Suzuki, "Jap. Soc. Powder and Powder Met", 30, pp.106~ (1983)
- S.Kinoshita, "Jap. Soc. Powder and Powder Met", 41, pp.152~ (1994)
- M.Ueki, "Jap. Soc. Powder and Powder Met", 40, pp.743~ (1993)