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Free Energy of Formation of Cementite and the Solubility of Cementite in Austenite

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Abstract

The solubility of cementite in austenite is computed by thermodynamic methods from the observed solubility of graphite. It is found that the solubility of cementite is greater than that of graphite in the entire austenite temperature range. Thus the prior discrepancy between this portion of the phase diagram and the observed metastability of cementite is partially resolved.

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Authors and Affiliations

  1. Research Laboratory, U. S. Steel Co., Kearny, N. J., USA

    L. S. Darken (Member AIME) & R. W. Gurry

Authors
  1. L. S. Darken
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  2. R. W. Gurry
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Additional information

Discussion on this paper, TP 3128E, may be sent, 2 copies, to AIME by April 1, 1952. Manuscript, May 18, 1951. New York Meeting, February 1952.

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Darken, L.S., Gurry, R.W. Free Energy of Formation of Cementite and the Solubility of Cementite in Austenite. JOM 3, 1015–1018 (1951). https://doi.org/10.1007/BF03397413

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  • DOI: https://doi.org/10.1007/BF03397413

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