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Phase relationships in the Fe-Cr-C system at solidification temperatures

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An Erratum to this article was published on 01 June 1987

An Erratum to this article was published on 01 June 1987

This article has been updated

Abstract

The phase relationships between the liquid phase and the primary solid phases were investigated in the iron-rich corner of the Fe-Cr-C system. The investigation consisted of measurements of tie-lines and the liquidus surface of the liquid-delta (bcc) and liquid-gamma (fcc) equilibria in the Gibbs triangle, bounded by 0 to 1.4 wt pct C and 0 to 25 wt pct Cr (bal. Fe). The peritectic surface of the three-phase equilibrium was also measured. The temperature ranged from 1811 to about 1750 K. The tie-lines were obtained from liquid-solid equilibrium couples, and the liquidus and peritectic surfaces, by differential thermal analysis (DTA). A statistical procedure was applied to determine from the experimental results the parameters required for a thermodynamic model of the system. Calculations by the model are in good agreement with the experimental results. As a consequence the model can be used to interpolate and extrapolate properties and compositions of phases in equilibrium in the system within the composition and temperature field investigated.

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Author information

Authors and Affiliations

  1. Armco Inc., 45043, Middletown, OH

    D. M. Kundrat (Senior Research Engineer)

  2. Cabot Wrought Products Division, Cabot Corporation, 46901, Kokomo, IN

    M. Chochol (Manager of Process Engineering)

  3. Department of Materials Science and Engineering, Massachusetts Institute of Technology, 02139, Cambridge, MA

    J. F. Elliott (Professor of Metallurgy)

Authors
  1. D. M. Kundrat
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  2. M. Chochol
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  3. J. F. Elliott
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Additional information

D.M. KUNDRAT, formerly Research Fellow at Massachusetts Institute of Technology

M. CHOCHOL, formerly Research Assistant, Massachusetts Institute of Technology

An erratum to this article is available at http://dx.doi.org/10.1007/BF02656170.

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Kundrat, D.M., Chochol, M. & Elliott, J.F. Phase relationships in the Fe-Cr-C system at solidification temperatures. Metall Trans B 15, 663–676 (1984). https://doi.org/10.1007/BF02657287

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  • DOI: https://doi.org/10.1007/BF02657287

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