Abstract
Phase diagrams for simple ternary systems such as Fe-Al-O, Fe-Si-O and more complex systems Fe-Mn-Al-O, Fe-Mn-Si-O have been used to rationalize some of the observations made during deoxidation. The formation of less stable oxides such as liquid aluminates and spinel is shown to be a consequence of the reaction path followed by the metal-inclusion system. The significance of univariant conditions in which three phases are in equilibrium is brought out. During cooling and solidification inclusions may change from a solid oxide to a liquid oxide phase and vice versa. This causes a change in solidification from eutectic type to a monotectic type. The existence of a saddle point at which either a eutectic or monotectic solidification begins is established and its significance in semi-killed steel is brought out.
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References
H. Strabe, G. Kuhnelt, and E. Plöckinger:Arch. Eisenhüttenw., 1967, vol. 38, no. 7, p. 509.
H. Sawamura and K. Sand: Special Report No. 3, 1963, The Subcommittee for Physical Chemistry of Steelmaking, The Japan Society for the Promotion of Science, Tokyo.
A. Muan and E. F. Osborn:Phase Equilibria Among Oxides in Steelmaking, p. 53, Addison-Wesley Publishing Co., 1965.
A. McLean:J. Metals, 1968, vol. 20, no. 3, p. 96.
C. E. Sims, ed.,Electric Furnace Steelmaking, Interscience Publishers, 1962, Ch. 16, Fig. 16.
D. C. Hilty and W. Crafts:Trans. AIME, 1952, vol. 188, p. 425.
F. Kubic:Radex Rundsch, 1960, no. 2, p. 86.
N. A. Gokcen and J. Chipman:Trans. AIME, 1952, vol. 188, p. 296.
E. L. Evans and H. A. Sloman:J. Iron Steel Inst., 1952, vol. 171, p. 296.
K. Torsell:Jenkontorets Ann., 1967, vol. 151, p. 890.
M. L. Turpin and J. F. Elliott:J. Iron Steel Inst., 1966, vol. 204, p. 217.
C. E. Sims and W. D. Forgeng:Electric Furnace Steelmaking, D. C. Hilty, ed., Interscience Publishers, New York, 1963. vol. 2, p. 382.
R. K. Iyengar and W. O. Philbrook:Met. Trans., 1973, vol. 4, pp. 2181–88.
J. F. Elliott:Proc. International Conf. on Science and Technology of Iron and Steel, Pt. 1, Trans. ISIJ, 1971, p. 416.
Y. Wanibe and K. Sano:Trans. Jap. Inst. Metals, 1968, vol. 9, p. 19.
R. A. Rege, E. S. Szekeres, and W. D. Forgeng, Jr.:Met. Trans., 1970, vol. 1, p. 2652.
G. C. Duderstadt, R. K. Iyengar, and J. M. Matesa:J. Metals, 1968, vol. 20, no. 4, p. 89.
E. T. Turkdogan:Trans. TMS-AIME, 1965, vol. 233, p. 2100.
K. P. Abraham, M. W. Davies, and F. D. Richardson:J. Iron Steel Inst, 1960, vol. 196, p. 82.
J. F. Elliot, N. Gleiser and V. Ramakrishna:Thermochemistry for Steelmaking, p. 566, Addison-Wesley Publishing Co., Inc., 1963.
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Iyengar, R.K., Philbrook, W.O. Application of phase diagrams to predict phases formed during deoxidation of steel. Metall Trans 4, 2189–2193 (1973). https://doi.org/10.1007/BF02643286
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DOI: https://doi.org/10.1007/BF02643286