DOI QR코드

DOI QR Code

TiC-Ni3Al Cermet에 타성분(B4C, Mn, TiB2, B) 첨가의 영향

Effect of Addition of Other Componene (B4C, Mn, TiB2, B) on TiC-Ni3Al Cermet

  • 김지헌 (한양대학교 금속재료공학과) ;
  • 이완재 (한양대학교 금속재료공학과)
  • 발행 : 2002.10.01

초록

The effects of boron or manganese added as $B_4C$, Mn, $TiB_2$, B on TiC-30vo1.%$Ni_3Al$ cermet sintered at 1380 and $1400^{\circ}C$ for 1 hour, were examined in relation with shrinkage, relative density, microstructure, lattice parameter, hardness and fracture toughness ($K_{IC}$). The results are summarized as follows: 1) The highest shrink-age showed about 30.5% in the specimen added B$_4$C and the maximum relative density was about 99% in the specimen added $TiB_2$; 2) The grains of TiC were grown during sintering and made the surrounding structure by adding boron and manganese. The largest grain size showed about $2.8\mutextrm{m}$ in the specimen with boron sintered at $1400^{\circ}C$;3) The lattice parameter of TiC was about $4.325\AA$ and $Ni_3Al$ about $3.592\AA$ by adding other elements; 4) The highest hardness was about $1100kgf/\textrm{mm}^2$ in the specimen with B4C; 5) The fracture toughness ($K_{IC}$) showed about $15MNm^{-3/2}$ in the specimen added $TiB_2$.

키워드

참고문헌

  1. 한국분말야금학회지 v.5 손호민;이완재
  2. 한국분말야금학회지 v.6 손호민;이완재
  3. 日本金屬學會誌 v.43 靑木淸;和泉修
  4. Acta Met. v.33 T. Takasugi;O. Izumi;N. Masahashi https://doi.org/10.1016/0001-6160(85)90237-8
  5. J. of Refractory Metals & Hard Mat. v.16 W. D. Schubert;H. Neumeister;G. Kinger;B. Lux
  6. J. Metals v.6 R. L. Fullman
  7. Binary Alloy Phase Diagrams v.1 Thaddeus B. Massalski(etc.);Joanne L. Murray(ed.)