Thermodynamic properties of carbon and manganese in Mn-C and Mn-Fe-C melts

  • Er-bao ChenEmail author
  • Shi-jun Wang


Carbon solubility in Mn-Fe melts (xMn=0.083 − 0.706, xFe = 0.034 − 0.715) was measured experimentally at various temperatures. By thermodynamic derivation and calculation, the relationship between activity coefficient of carbon in infinite dilute solution of manganese in Mn-C system and temperature was obtained. Using Gibbs-Duhem relationship, the experimental results of this study, and experimental data obtained by strict thermodynamic derivation and calculation in references, the relationships between other thermodynamic properties (εCC, εCCC, εCFe, εCCFe, and εcFeFe) in Mn-Fe-C system and temperature were obtained.

Key words

Mn-Fe-C melt activity interaction parameter thermodynamic property carbon manganese 


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  1. 1.
    Kim E J, Pak J J. Thermodynamics of Carbon in Liquid Ferromanganese Alloys [A]. ISS, eds. 2002 Steelmaking Conf Proc [C]. Warrendale: ISS, 2002. 715.Google Scholar
  2. 2.
    Lee Y E. Thermodynamical Assessment of Liquid Mn-Fe-C System by Unified Interaction Parameter Model [J]. ISIJ International, 2003, 43(2): 144.CrossRefGoogle Scholar
  3. 3.
    Katsnelson A, Sano N. Determination of Manganese and Carbon Activities of Mn-C Melts at 1 628 K [J]. ISIJ International, 1993, 33(10): 1045.CrossRefGoogle Scholar
  4. 4.
    Enokido H, Morooka A, Ichise E. Thermo-Chemical Activities of Liquid Fe-Mn-C Alloy [J]. Tetsu-to-Hagané, 1995, 81 (6): 619 (in Japanese).CrossRefGoogle Scholar
  5. 5.
    Tanaka A. Activities of Manganese in Mn-Fe-C, Mn-Si-C and Mn-Fe-Si-C Melts at 1 673 K [J]. Trans Jpn Inst Met, 1980, 21(1): 27.CrossRefGoogle Scholar
  6. 6.
    CHEN Er-bao, DONG Yuan-chi, GUO Shang-xing. Study on Thermodynamical Properties in Mn-Fe Alloy Melts [J]. Acta Metallurgica Sinica, 1997, 33(8): 831 (in Chinese).Google Scholar
  7. 7.
    NI Rui-ming, MA Zhong-ting, WEI Shou-kun. Thermodynamics of Mn-Fe-C and Mn-Si-C Systems [J]. Journal of Iron and Steel Research, 1990, 2(4): 17 (in Chinese).Google Scholar
  8. 8.
    Sigworth G K, Elliott J F. Thermodynamics of Liquid Dilute Iron Alloys [J]. Met Sci, 1974, 8(9): 298.CrossRefGoogle Scholar
  9. 9.
    Chipman J. Thermoynamics of Liquid Fe-C Solutions [J]. Metall Trans, 1970, 1(8): 2163.CrossRefGoogle Scholar
  10. 10.
    HUANG Xi-hu. Principle of Ironmaking and Steelmaking (Revised Edition) [M]. Beijing: Metallurgical Industry Press, 1997 (in Chinese).Google Scholar
  11. 11.
    Turkdogan E T. Physical Chemistry of High Temperature Technology [M]. NewYork: Academic, 1980.Google Scholar
  12. 12.
    Pelton A D, Bale C W. A Modified Interaction Parameter Formalism for Non-Dilute Solutions [J]. Metall Mater Trans, 1986, 17A(7): 1211.CrossRefGoogle Scholar
  13. 13.
    Bale C W, Pelton A D. The Unified Interaction Parameter Formalism: Thermodynamic Consistency and Applications [J]. Metall Mater Trans, 1990, 21A(7): 1997.CrossRefGoogle Scholar

Copyright information

© China Iron and Steel Research Institute Group 2008

Authors and Affiliations

  1. 1.School of Metallurgy and ResourcesAnhui University of TechnologyMa’anshan, AnhuiChina

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