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The contribution of electrochemical reactions to sulfur transfer from electrode to slag in electroslag remelting

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Abstract

In order to assess the contribution of electrochemical reactions to refining reactions, such as sulfur removal, in electroslag remelting, electrochemical experiments which simulate conditions at the electrode/slag, and liquid metal pool/slag interfaces have been carried out. Liquid copper electrodes and a CaO-Al2O3-CaF2 electrolyte were used. The experimental technique involved chronopotentiometry at constant current. Sulfur reversion from slag to metal is shown to be a diffusion controlled, reversible electrochemical process involving two electrons. On the other hand sulfur transfer from metal to slag occurs both by the diffusion controlled electrochemical reaction and the direct exchange reaction. A hanging drop electrode system was used to simulate conditions at the electrode/slag interface. Further experiments on the hanging drop electrode with and without applied current showed that direct reaction was a minor contribution to sulfur removal. The results are compared to findings from industrial practice.

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References

  1. B. I. Medovar, Yu. V. Latash, B. I. Muksimovich, and L. M. Stupak:Electroslag Remelting, U. S. Department of Commerce, 1963, no. 22, p. 217.

  2. J. Cameron, M. Etienne, and A. Mitchell:Met. Tram., 1970, vol. 1, p. 1839.

    Article  CAS  Google Scholar 

  3. B. I. Muksimovich:Auto. Weld., 1961, vol. 14, p. 42.

    Google Scholar 

  4. D. A. Dudko and I. N. Rublevskii:Auto. Weld, 1962, vol. 15, p. 34.

    Google Scholar 

  5. A. Mitchell and M. Bell:Can. Metall. Quart., 1972, vol. 11, p. 363.

    CAS  Google Scholar 

  6. R. J. Hawkins, D. J. Swinden, and D. N. Pocklington:ElectroslagRefining, p. 21, The Iron and Steel Institute, London, 1973.

    Google Scholar 

  7. W. Holzgruber, P. Machner, E. Ploeckinger, and G. Boehler:Trans, of the VacuumMet. Conf., p. 415, Amer. Vacuum Soc, New York, 1969.

    Google Scholar 

  8. J. Hlineny and Z. Buzek:Chem. Abst, 1966, vol. 65, p. 11857f.

    Google Scholar 

  9. J. Hlineny, I. Chmelar, and Z. Buzek:Chem. Abst., 1966, vol. 65, p. 3425d.

    Google Scholar 

  10. D. J. Swinden:Chemical Metallurgy of Iron and Steel, p. 60, The Iron and Steel Institute, London 1973.

    Google Scholar 

  11. P-0 Mellberg and H. Sandberg:Scand. J. Metall, 1973, vol. 2, p. 121.

    Google Scholar 

  12. G. Grunbaum and K. Gustafsson:Clean Steel, vol. I, p. 58, IVA 169:1, Stockholm, 1971.

    Google Scholar 

  13. W. Holzgruber and E. Ploeckinger:Stahl Eisen, 1968, vol. 88, p. 638.

    CAS  Google Scholar 

  14. P. Dewsnap, and R. Schlatter:Electroslag Remelting and Plasma Arc Melting, p. 30, National Materials Advisory Board, National Research Council, National Academy of Sciences, Washington, D.C., 1976.

    Google Scholar 

  15. J. Luchok and P. J. Wooding:Electroslag Remelting and Plasma Arc Melting, p. 138, National Materials Advisory Board, National Research Council, National Academy of Sciences, Washington, DC, 1976.

    Google Scholar 

  16. V. V. Panin, N. I. Fomin, and V. K. Galkin:LiteinolProizvod., 1971, no. 6, p. 29.

  17. V. V. Panin, and I. S. Ivakhnenko:Russ. Metall, 1961, no. 2, p. 23.

  18. G. A. Vachugov, V.V. Khlynov, and G. A. Khusin:Stalbau, 1967, vol. 6, p. 483.

    Google Scholar 

  19. N. Q. Minh and T. B. King:Proc. Joint U.S.-U.S.S.R. Symposium on Electroslag Remelting, Ukrainian Academy of Sciences, Kiev, 1978.

    Google Scholar 

  20. G. J. Janz:Molten Salt Handbook, Academic Press, NY, 1967.

    Google Scholar 

  21. R. J. Heus, and J. J. Egan:J. Electrochem. Soc, 1960, vol. 107, p. 824.

    Article  CAS  Google Scholar 

  22. R. B. Escue, T. H. Tidwell, and D. K. Dickie:J. Electroanal. Chem., 1966, vol. 12, p. 220.

    Article  CAS  Google Scholar 

  23. K. Nagata, M. Kawakami, and K. S. Goto:Metal-Slag-Gas Reactions and Processes, Z. A. Foroulis and W. W. Smeltzer, eds., p. 183, The Electro-chemical Society, Princeton, NJ, 1975.

    Google Scholar 

  24. W. H. Reinmuth:Anal Chem., 1961, vol. 33, p. 1438.

    Article  Google Scholar 

  25. P. Delahay:New Instrumental Methods in Electrochemistry, Interscience, NY, 1954.

    Google Scholar 

  26. G. Mamantov and P. Delahay:J. Am. Chem. Soc, 1954, vol. 76, p. 5323.

    Google Scholar 

  27. K. Monma and H. Suto:Trans. Jpn Inst. Met, 1961, vol. 2, p. 148.

    CAS  Google Scholar 

  28. P. Kozakevitch:Physical Chemistry of Steelmaking, p. 134, MIT Press, Cambridge, MA, 1957.

    Google Scholar 

  29. B. M. Patchett and D. R. Milner:Weld. Res. Suppl, 1972, vol. 52, p. 491.

    Google Scholar 

  30. V. G. Kovalenko and Yu. P. Nikitin:Automatic Welding, 1966, vol. 19, p. 81.

    Google Scholar 

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Authors and Affiliations

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

    N. Q. Minh (Scientist) & T. B. King (Professor)

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  1. N. Q. Minh
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  2. T. B. King
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Minh, N.Q., King, T.B. The contribution of electrochemical reactions to sulfur transfer from electrode to slag in electroslag remelting. Metall Trans B 10, 623–629 (1979). https://doi.org/10.1007/BF02662565

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  • DOI: https://doi.org/10.1007/BF02662565

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