Calcium deoxidation equilibrium in liquid iron
- Sumitomo Metal Industries Ltd., Kashima (Japan). Kashima Steel Works
- Tohoku Univ., Sendai (Japan). Institute for Advanced Materials Processing
Calcium-oxygen equilibrium was studied at 1873 K under normal pressure by the method of immersing a pure iron capsule containing calcium metal into liquid iron, which was equilibrated with CaO-Al[sub 2]O[sub 3] slags in Al[sub 2]O[sub 3] and CaO crucibles. On the basis of these and previous results obtained in the equilibrium experiments between liquid iron and CaO-containing slags, the equilibrium constant, K[sub Ca], for the reaction, CaO (s) = Ca + O, and the first-order interaction parameter, e[sub 0][sup Ca] , were estimated. The measured value for K[sub Ca] reported in previous experiments, which was found to be significantly different from that calculated from the reliable thermodynamic data, was discussed. Nitrogen distribution ratios between CaO-Al[sub 2]O[sub 3] slags and liquid iron were also measured.
- OSTI ID:
- 7207573
- Journal Information:
- Metallurgical Transactions, B (Process Metallurgy); (United States), Journal Name: Metallurgical Transactions, B (Process Metallurgy); (United States) Vol. 25:1; ISSN MTTBCR; ISSN 0360-2141
- Country of Publication:
- United States
- Language:
- English
Similar Records
Inclusion Characterization in Aluminum-Deoxidized Special Steel with Certain Sulfur Content Under Combined Influences of Slag Refining, Calcium Treatment, and Reoxidation
Thermodynamics of oxygen and nitrogen in liquid nickel equilibrated with CaO-TiO[sub x] and CaO-TiO[sub x]-Al[sub 2]O[sub 3] melts
Related Subjects
360101* -- Metals & Alloys-- Preparation & Fabrication
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
ELEMENTS
FABRICATION
FLUIDS
IRON ALLOYS
IRON BASE ALLOYS
LIQUID METALS
LIQUIDS
METALS
OXIDES
OXYGEN COMPOUNDS
REDUCTION
SOLUBILITY
STEELS