ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Assessment of Calcium-Oxygen Equilibrium in Liquid Iron
Sung-Wook ChoHideaki Suito
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1994 Volume 34 Issue 3 Pages 265-269

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Abstract

The first-order (eOCa) and the second-order (rOCa, rOCa, O) interaction parameters between calcium and oxygen in liquid iron were determined at 1873 K by using the previous data obtained in slag-metal equilibrium experiments, on the basis of the reciprocal and conversion relationships between mass percent and mole fraction scales. The Values for eOCa, rOCa and rOCa, O were obtained as -3600, 5.7×105 and 2.9×106 in the range of {[mass%Ca]+2.51[mass%O]}<0.005 and -990, 4.2×104 and 2.1×106 in the range of {[mass%Ca]+2.51[mass%O]}≥0.005, respectively, and the validity of these values was discussed.

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© The Iron and Steel Institute of Japan
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