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Thermodynamics of inclusion formation in Fe-Ti-C-N alloys

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Abstract

The thermodynamics of the formation of titanium carbonitride in liquid iron-titanium-carbon-nitrogen alloys were investigated in order to predict under what conditions it will form in liquid steel. A metal-carbonitride equilibration technique was used. Titanium carbonitride of a desired composition was made by mixing and high-temperature sintering of very fine powders of titanium nitride and carbide. The formation of titanium carbonitride was confirmed by lattice parameter measurements on the samples before and after the experiments. The equilibrium concentrations of titanium, carbon, and nitrogen in equilibrium with a specific titanium carbonitride were obtained at 1873 K. Activities of titanium carbide and nitride relative to pure solid titanium carbide and nitride were calculated. It was found that titanium carbonitride solid solution is almost ideal. From the results, calculations were performed to predict at which composition various carbonitrides will form.

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References

  1. F.D. Delve, H.W. Meyer, and H.N. Lander:Physical Chemistry of Process Metallurgy, Part 2, Interscience Publishers, New York, NY, 1961, pp. 1111–39.

    Google Scholar 

  2. E.T. Turkdogan:Trans. ISS, I&SM, May 1989, p. 61.

  3. P. Duwez and F. Odell:J. Electrochem. Soc., 1950, vol. 97, pp. 209–304.

    Google Scholar 

  4. Powder Diffraction File, International Center for Diffraction Data, Swarthmore, PA, 1987.

  5. L. Liao and R.J. Fruehan:Trans. ISS, I&SM, Oct 1989, p. 91.

  6. E.T. Turkdogan:Physical Chemistry of High Temperature Technology, Academic Press, New York, NY, 1980.

    Google Scholar 

  7. M.M. Rao and N.A.D. Parlee:Mem. Sci. Rev. Metall., 1961, vol. 58, pp. 52–60.

    CAS  Google Scholar 

  8. A.N. Morozov, V.F. Isaev, and L.G. Korolev:Izv. Akad. Nauk USSR Met., 1963, no. 4, pp. 141–44.

  9. D.B. Evans and R.D. Pehlke:Trans. TMS-AIME, 1965, vol. 233, pp. 1620–24.

    CAS  Google Scholar 

  10. Z. Morita and K. Kunisada:Trans. Iron Steel Inst. Jpn., 1977, vol. 18, pp. 648–54.

    Google Scholar 

  11. G.K. Sigworth and J.F. Elliott:Met. Sci., 1974, vol. 8, pp. 298–310.

    CAS  Google Scholar 

  12. Steelmaking Data Sourcebook, The Society for the Promotion of Science, The 19th Committee Steelmaking, Gordon and Breach Publishers, New York, NY, 1988.

  13. N.R. Frage, U.G. Gureich, and V.l. Tomilov:Izv. VUZor Cher. Met., 1974, no. 6, pp. 13–15.

  14. A.N. Morozov:Metallurgiya, 1968, no. 2, p. 281.

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Authors and Affiliations

  1. Department of Metallurgical Engineering and Materials Science, Carnegie Mellon University, 15213, Pittsburgh, PA

    Bahri Ozturk (Research Faculty) & R. J. Fruehan (Professor)

Authors
  1. Bahri Ozturk
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  2. R. J. Fruehan
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Ozturk, B., Fruehan, R.J. Thermodynamics of inclusion formation in Fe-Ti-C-N alloys. Metall Trans B 21, 879–884 (1990). https://doi.org/10.1007/BF02657814

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  • DOI: https://doi.org/10.1007/BF02657814

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