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Sulfides and oxides in Fe−Mn alloys: Part II. Precipitation of solid sulfides and liquid oxysulfides during oxidation of iron alloys

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Abstract

Experimental results are presented showing that oxidation in air or in mixtures of CO2 and CO of iron alloys, containing Mn (0 to 0.34 pct) and/or S (150 ppm) at temperatures between 900° and 1300°C, results in the formation of a liquid oxysulfide phase at and near the metal/oxide interface. Electron microprobe analysis showed that this liquid consists of Fe (Mn), S and O. Oxidation of Fe−S alloys at rates slower than the rate of diffusion of sulfur in wustite does not cause any precipitation of a liquid oxysulfide at the interface. From indirect evidence, the sulfur diffusivity in wustite is estimated to be of the same order of magnitude as that in iron. The solubility of sulfur in wustite in equilibrium with iron and a liquid oxysulfide at 1250°C is about 140 ppm. It is found that the presence of a thin layer of liquid oxysulfide at the iron/wustite interface does not have a perceptible effect on the parabolic rate of oxidation of the metal.

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References

  1. L. S. Darken and R. W. Gurry:J. Am. Chem. Soc., 1945, vol. 67, pp. 1398–1412.

    Article  CAS  Google Scholar 

  2. K. P. Abraham, M. W. Davies, and F. D. Richardson:J. Iron Steel. Inst., 1960, vol. 196, pp. 309–12.

    CAS  Google Scholar 

  3. G. J. W. Kqr and F. D. Richardson:J. Iron Steel Inst., 1968, vol. 206, pp. 700–04.

    Google Scholar 

  4. W. R. Bandi, E. G. Buyok, and W. A. Straub:Anal. Chem., 1966, vol. 38, pp. 1485–89.

    Article  CAS  Google Scholar 

  5. S. Bog and T. Rosenqvist:The Physical Chemistry of Metallic Solutions and Intermetallic Compounds, NPL Symposium No. 9, vol. II, 1959.

  6. G. J. W. Kor and F. D. Richardson:Trans. Inst. Mining Met. (London), 1970, vol. 79, pp. C148–56.

    CAS  Google Scholar 

  7. H. C. Chao, Y. E. Smith, and L. H. Van Vlack:Trans. TMS-AIME, 1963, vol. 227, p. 796.

    CAS  Google Scholar 

  8. H. Wentrup:Tech. Mitt. Krupp, 1937, vol. 5, pp. 131–73.

    CAS  Google Scholar 

  9. K. Geissler and E. J. Kohlmeyer:Arch. Eisenhuettenw., 1958, vol. 29, pp. 57–63.

    CAS  Google Scholar 

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

    Google Scholar 

  11. C. Wagner:Z. physik. Chem., 1933, vol. 821, pp. 25–41;Atom Movements, pp. 153–73, ASM, Cleveland, Ohio, 1951.

    Google Scholar 

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

    CAS  Google Scholar 

  13. K. Heindlhofer and B. M. Larsen:Trans. A.S.S.T., 1933, vol. 21, pp. 865–95.

    CAS  Google Scholar 

  14. J. K. Stanley, J. von Hoene, and R. T. Huntoon:Trans. ASM, 1951, vol. 43, pp. 426–46.

    Google Scholar 

  15. M. H. Davies, M. T. Simnad, and C. E. Birchenall:Trans. AIME, 1951, vol. 191, pp. 889–96.

    Google Scholar 

  16. N. G. Schmahl, H. Baumann, and H. Schenck:Arch. Eisenhuettenw., 1958, vol. 29, pp. 83–88.

    CAS  Google Scholar 

  17. J. Païdassi:Acta Met., 1958, vol. 6, pp. 184–94.

    Article  Google Scholar 

  18. R. G. Olsson, B. B. Rice, and E. T. Turkdogan:J. Iron Steel Inst., 1969, vol. 207, pp. 1607–11.

    CAS  Google Scholar 

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Authors and Affiliations

  1. U. S. Steel Fundamental Research Laboratory, Monroeville, Pa.

    G. J. W. Kor & E. T. Turkdogan

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  1. G. J. W. Kor
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  2. E. T. Turkdogan
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Kor, G.J.W., Turkdogan, E.T. Sulfides and oxides in Fe−Mn alloys: Part II. Precipitation of solid sulfides and liquid oxysulfides during oxidation of iron alloys. Metall Trans 2, 1571–1578 (1971). https://doi.org/10.1007/BF02913879

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