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The diffusivity of sulfur in wüstite and its solubility in wüstite and γ iron in equilibrium with each other and a liquid oxysulfide

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Abstract

The solubility of sulfur in wüstite in equilibrium with γ iron and liquid oxysulfide was found to be 0.011 wt pct at 1050°C. The sulfur solubility in γ iron in equilibrium with wüstite and liquid oxysulfide was also determined at 1050°, 1150°, and 1250°C and found to be 135, 165, and 160 ppm respectively. These values are considerably lower than the sulfur-solubility in y iron in the binary Fe-S system saturated with pyrrhotite. The diffusivity of sulfur in wüstite was determined by oxidizing Fe-S alloys in mixtures of CO and CO2, and analyzing the entire sample for sulfur afterwards. From the amount of sulfur diffused through the growing wüstite layer into the gas phase, the diffusivity of sulfur in wüstite was evaluated, and found to be 4.1 × 10−8 and 9.6 × 10−7 cm2/s at 1050° and 1250°C respectively. These values are of the same order as the self-diffusivity of iron in wüstite in equilibrium with iron at the same temperatures.

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References

  1. G. J. W. Kor and E. T. Turkdogan:Met. Trans., 1971, vol. 2, pp. 1571–78.

    CAS  Google Scholar 

  2. S. Bog and T. Rosenquist: The Physical Chemistry of Metallic Solutions and Intermetallic Compounds, Paper 6B, NPL Symposium No. 9, London, 1958.

  3. E. T. Turkdogan and G. J. W. Kor:Met. Trans., 1971, vol. 2, pp. 1561–70.

    CAS  Google Scholar 

  4. T. Rosenquist and B. L. Dunicz:AIME Trans., 1952, vol. 194, pp. 604–8.

    Google Scholar 

  5. E. T. Turkdogan, S. Ignatowicz, and J. Pearson:J. Iron Steel Inst., 1955, vol. 180, pp. 349–54.

    CAS  Google Scholar 

  6. I. F. Kononyuk:Fiz. Metal. Metalloved., 1965, vol. 19, pp. 311–13.

    CAS  Google Scholar 

  7. L.S. Darken and R. W. Gurry:Met. Trans., 1971,vol. 2, pp. 1569–70.

    Google Scholar 

  8. E. T. Turkdogan and J. V. Vinters:Met. Trans., 1972, vol. 3, pp. 1561–74.

    CAS  Google Scholar 

  9. C. Wagner:Z. Phys. Chem., 1933, vol. B21, pp. 25–41; Atom Movements, pp. 153-73, ASM, 1951, Cleveland, Ohio.

    CAS  Google Scholar 

  10. L. Himmel, R. F. Mehl, and C. E. Birchenall:AIME Trans., 1953, vol. 197, pp. 827–43.

    Google Scholar 

  11. P. Hembree and J. B. Wagner:Trans. TMS-AIME, 1969, vol. 245, pp. 1547–52.

    CAS  Google Scholar 

  12. R. D. Pehlke and J. F. Elliott:Trans. TMS-AIME, 1963, vol. 227, pp. 844–55.

    CAS  Google Scholar 

  13. R. J. Fruehan:Met. Trans., 1972, vol. 3, pp. 1447–53.

    CAS  Google Scholar 

Download references

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Authors and Affiliations

  1. United States Steel Corporation Research Laboratory, 15146, Monroeville, Pa

    G. J. W. Kor (Senior Scientist)

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  1. G. J. W. Kor
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Kor, G.J.W. The diffusivity of sulfur in wüstite and its solubility in wüstite and γ iron in equilibrium with each other and a liquid oxysulfide. Metall Trans 3, 2343–2347 (1972). https://doi.org/10.1007/BF02647036

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  • DOI: https://doi.org/10.1007/BF02647036

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