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Thermodynamic properties of sulphur in molten iron-sulphur alloys

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Summary

To determine the thermodynamic properties of sulphur dissolved in liquid steel, the equilibrium in the reaction: H2 (g) + S = H2S (g) was reinvestigated for the temperature range of 1530–1730°C and sulphur concentrations up to 4.8 pct.

The free energy change in the above reaction was established as a function of temperature. Values of the activity coefficient of sulphur were determined. The effect of silicon on the activity coefficient of sulphur was computed from the data of Morris and Williams. Using these coefficients it is shown that other recent data on the same reaction are in good agreement with the present results.

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References

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Author information

Authors and Affiliations

  1. Dept. of Metallurgy, Mass. Inst. of Tech., Cambridge, Mass., USA

    Charles W. Sherman (Graduate Student) & John Chipman (Member AIME, Professor of Metallurgy)

  2. Degerfors Jernverks A. B., Degerfors, Sweden

    Hans I. Elvander (Metallurgical Engineer)

Authors
  1. Charles W. Sherman
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  2. Hans I. Elvander
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  3. John Chipman
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Additional information

AIME New York Meeting, Feb. 1950.

TP 2773 C. Discussion (2 copies) may be sent to Transactions AIME before Apr. 1, 1950, and is scheduled for publication Nov. 1950.

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Sherman, C.W., Elvander, H.I. & Chipman, J. Thermodynamic properties of sulphur in molten iron-sulphur alloys. JOM 2, 334–340 (1950). https://doi.org/10.1007/BF03399008

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  • DOI: https://doi.org/10.1007/BF03399008

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