Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Surface Characteristics of TiC Layer Formed on Ti Alloys by Plasma Ion Carburizing

플라즈마 이온 확산법에 의해 타이타늄 합금 표면층에 형성된 TiC층에 관한 연구

  • Lee, Doh-Jae (Dept. of Metallurgical Engineering, Chonnam National University) ;
  • Choi, Dap-Chon (Dept. of Metallurgical Engineering, Chonnam National University) ;
  • Yang, Hyeon-Sam (Dept. of Metallurgical Engineering, Chonnam National University) ;
  • Jung, Hyun-Yeong (Dept. of Metallurgical Engineering, Chonnam National University) ;
  • Bae, Dae-Sung (Dept. of Advanced Material Application, Korea Polytechnic Colleges) ;
  • Lee, Kyung-Ku (Dept. of Metallurgical Engineering, Chonnam National University)
  • 이도재 (전남대학교 공과대학 금속공학과) ;
  • 최답천 (전남대학교 공과대학 금속공학과) ;
  • 양현삼 (전남대학교 공과대학 금속공학과) ;
  • 정현영 (전남대학교 공과대학 금속공학과) ;
  • 배대성 (한국폴리텍 V대학 신소재응용학과) ;
  • 이경구 (전남대학교 공과대학 금속공학과)
  • Published : 2007.07.20
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Abstract

The TiC layer was formed on Ti and Ti alloys by plasma carburizing method. The main experimental parameters for plasma car boozing were temperature and time. XRD, EDX, hardness test and corrosion test were employed to analyze the evolution and material properties of the layer. The preferred orientation of TiC layers is (220) at treated temperature of $700^{\circ}C\;and\;880^{\circ}C$ However, it is changed to (200) at temperature of $800^{\circ}C$ The thickness of carbide layer increase with increasing carburizing temperature. Highest hardness of hardened layer formed on CP-Ti was obtained at the carburizing condition of processing temperature $880^{\circ}C$ and processing time 1080min. The corrosion potential of carburizing specimen was higher than untreated CP-titanium, and corrosion potential increased as carburizing temperature and time increased. Thus the corrosion resistance of CP-Ti was greatly enhanced after plasma carburizing treatment.

Keywords

References

  1. M. T. Milliano, L. A. Whiteside, A. D. Kaiser and P. A. Zwirkowski, Clin. Orthop., 287 (1993) 178
  2. B. Dernri, M. Hage-Ali, M. Moritz and D. Muster, Biomaterials, 'Surface characterization of C/Ti-6AI-4V coating treated with ion beam' 18 (1997) 305-310 https://doi.org/10.1016/S0142-9612(96)00130-5
  3. B. O. Aronsson, J. Lausmaaand B. Kasemo:, J. Biomed. Mater. Res., 'Bone response to surface-modified titanium implants: studies on the early tissue response to machined and electro-polished implants with different oxide thicknesses35' (1997) 605-616
  4. D. Krupa, J. Baszkiewicz, J. Kozubowski, B. Barcz, G. Gawlik, J. Jagielski and P. Larisch, 'Effect of oxygen implantation upon the corrosion resistance of the OT-4-0 titanium alloy, Surface coatings Technol.' 96 (1997) 223-229 https://doi.org/10.1016/S0257-8972(97)00107-2
  5. I. Dion, X. Rogues, N. More, L. Labrousse, J. Caix, F. Lefebvre, F. Rouais, J. Gautreau, ch. Baguey, 'Ex vivo leucocyte adhesion and protein adsorption on TiN' Biomaterials, 14 (1993) 712-719 https://doi.org/10.1016/0142-9612(93)90070-I
  6. K-T Rie, J. Wohle, A. Gebauer, 'Plasma assisted CVD for low temperature coatings to improve the wear and corrosion resistance, Surface Coating Technology' 86-87(1996) 498-506
  7. L. Hultman, G Hakanson, U. Wahlstrom, 'Transmission electron microscopy studies of microstructural evolution, defect structure, and phase transitions in polycrystalline and epitaxial $Ti_{1_x}Al_xN$ and TiN films grown by reactive magnetron sputter deposition, Thin Solid Films' 205 (1993) 153-164 https://doi.org/10.1016/0040-6090(91)90297-B
  8. Ok-Hyun Nam, In-Woo Lee, 'Moon-Il Kim, High temperature behavior of TiC films deposited by PECVD (II)(variation in chemical composition and state' J. of the Korean Inst. of met. & mater., 32 (1994) 946-951
  9. A. Raver, A. Rubinshtein, M. Weiss, M.H. Mintz, J.E. KlembergSapieha, L. Matrinu, 'Ta-C micro-composite material formed by heat treatment of plasma carburized layer, Thin Solid Films' 466 (2004) 151-157 https://doi.org/10.1016/j.tsf.2004.03.017
  10. Md. Aminul Islam, Md. Mohar Ali Bepari, 'Structure and properties of carburized and hardened niobium micro-alloyed steels' J. of Materials Processing Technology, 74 (1998) 183-189 https://doi.org/10.1016/S0924-0136(97)00266-5
  11. Takeshi Inous, Yutaka Hiraoka, Masahiro Nagae, Jun Takada, 'Effects of Ti addition on carbon diffusion in molybdenum' J. of Alloys and Compounds, 414 (2005) 82-87