Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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A study on the hardening characterstics of the TiC layer formed by the reactive deposition technique

반응석출법에 의해 피복된 TiC의 경화거동에 관한 연구

  • Nam, K.S. (Dept. of Material Processing, KIMM) ;
  • Byon, E.S. (Dept. of Material Processing, KIMM) ;
  • Lee, G.H. (Dept. of Material Processing, KIMM) ;
  • Kim, D.H. (Dept. of Metallurgical Engineering, Yonsei Univ.)
  • 남기석 (한국기계연구원 재료공정연구부) ;
  • 변응선 (한국기계연구원 재료공정연구부) ;
  • 이구현 (한국기계연구원 재료공정연구부) ;
  • 김도훈 (연세대학교 금속공학과)
  • Published : 1994.12.31
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Abstract

In this study, lattice parameter, binding energy and microstructures of TiC layer according to the addition of Fe, Cr were investigated in the reactive deposition coating. From the results, the lattice parameters of the TiC layers by using ferro-titanium as a precursor were 4.329~4.339A but the lattice parameters of the TiC layers formed by ferro-titanium and ferro-chromium decreased to 4.316~4.330A. The hardness of the former's was HV(100g) 3,000~3,400kg/mm and the hardness of the latter's was HV (100g) 3,800~3,900. But, regardless of Cr and Fe, the binding energy of TiC layers were 454.75 eV for $Ti2p_{3/2}$ and were 281.85 eV for Cls. Meanwhile, the TiC layers were densified by addition of Fe, Cr and internal defects were reduced Therefore. it can be concluded that the remarkable hardness increment was obtained by the improvement of microstructures of TiC rather than the increase of bond strength or Peierls stress.

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