Abstract
The solubility of the liquid oxide phase in liquid Fe-O alloys has been measured for the temperature range of 1378 to 1740 °C. Also the solubility of the liquid oxysulfide phase in liquid Fe-O-S alloys has been determined for the composition range of 0.08 to 0.30 wt pct oxygen and 0 to 0.5 wt pct sulfur. The oxygen content of liquid iron saturated with the liquid oxide phase is log O = −6358/T + 2.76. The standard free energy for the formation of the oxide phase is: xFe(l) + O(pct) = FexO(l); ΔG° = 242.4 − 0.0829T + 166,990/T(kJ). The equation for the standard free energy in the temperature range of 1550 to 1650 °C may be written as: −117.5 + 0.0496T (kJ). The effect of composition on temperature of saturation of liquid Fe-O-S alloys with the oxysulfide phase is:T(K) = −6358/(log pct O − 2.76) - (pct S)x [554 + 135.0(log O − 2.77)]. The relationship applies for the composition range of 0.15 to 0.30 wt pct oxygen and 0.0 to 0.5 wt pct sulfur and temperatures from 1480 to 1680 °C.
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J. Yarwood, M.C. Flemings, and J.F. Elliott:Metall. Trans., 1971, vol. 2, pp. 2573–82.
C.R. Taylor and J. Chipman:Trans. AIME, 1942, vol. 154, pp. 228–41.
J. C. Yarwood: Ph. D. Thesis, Massachusetts Institute of Technology, Cambridge, MA, 1968.
N. A. Gokcen:Trans. AIME, 1956, vol. 206, pp. 1658–67.
W. A. Fischer and L. vom Ende:Arch. Eisenhuttenwes, 1952, vol.23, pp. 21–32.
G.K. Sigworth and J.F. Elliott:Metal Science, 1974, vol. 8, pp. 298–310.
J.F. Elliott, M. Gleiser, and V. Ramakrishna:Thermochemistry for Steelmaking, Addison-Wesley Press, Inc., 1963, vol. II, p. 621.
E.W. Dewing and F.D. Richardson:Jnl. I. S.I. (Br.), 1960, vol. 194, pp. 446–50.
D.C. Hilty and W. Crafts:Trans. AIME, 1952, vol. 194, pp. 1307–12.
R. C. Sussman: Sc. D. Thesis, Massachusetts Institute of Technology, September 1975.
U.R. Rocca, N. J. Grant, and J. Chipman:Trans. AIME, 1951, vol. 191, p. 319.
Z. Bushek and A.M. Samarin:C.A., 1963, vol. 52, p. 1888; 1960, vol. 54, p. 3115.
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formerly Graduate Research Assistant, Department of Materials Science and Engineering Manuscript submitted .
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Nduaguba, M., Elliott, J.F. The solubility of the liquid oxysulfide phase in liquid Fe-O-S alloys. Metall Trans B 14, 679–683 (1983). https://doi.org/10.1007/BF02653954
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DOI: https://doi.org/10.1007/BF02653954