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Thermodynamics and phase equilibria for the Fe−C−Cr system in the vicinity of the eutectoid temperature

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Abstract

The low chromium Fe−C−Cr phase equilibria pertinent to the eutectoid transformation of austenite have been modeled and calculated from published thermodynamic information and verified through a series of selected equilibration experiments. In particular, α-γ, α-cm and γ-cm partition coefficients have been measured within the range 700 to 770°C and compared with austenite and carbide models proposed by Hillert and coworkers. While the theoretical-empirical closure is not perfect, the models are proven to be completely adequate for incorporation within the kinetic description of the corresponding ternary pearlite reaction.

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Author notes

  1. R. C. Sharma

    Present address: Department of Metallurgical Engineering, Indian Institute of Technology, I.I.T, P.O., Kanpur, U.P., India

Authors and Affiliations

  1. Department of Metallurgy and Materials Science, McMaster University, Hamilton, Ontario, Canada

    G. R. Purdy & J. S. Kirkaldy

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  1. R. C. Sharma
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  2. G. R. Purdy
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  3. J. S. Kirkaldy
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R. C. SHARMA, formerly with McMaster University

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Sharma, R.C., Purdy, G.R. & Kirkaldy, J.S. Thermodynamics and phase equilibria for the Fe−C−Cr system in the vicinity of the eutectoid temperature. Metall Trans A 10, 1119–1127 (1979). https://doi.org/10.1007/BF02811657

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  • DOI: https://doi.org/10.1007/BF02811657

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