Premium
Thermodynamics of oxygen, nitrogen and sulfur in liquid iron equilibrated with CaO‐TiO x and CaO‐Al 2 O 3 ‐TiO x melts
Author(s) -
Kishi Mikine,
Suito Hideaki
Publication year - 1994
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.199401068
Subject(s) - sulfur , crucible (geodemography) , nitrogen , oxygen , nitride , sulfide , chemistry , inorganic chemistry , metal , activity coefficient , metallurgy , analytical chemistry (journal) , materials science , layer (electronics) , computational chemistry , organic chemistry , chromatography , aqueous solution
Equilibria between CaO‐TiO x or CaO‐Al 2 O 3 ‐TiO x melts and liquid iron with respect to O, N and S were studied at 1873 K as a function of Ti (or Al) content in metal, using a CaO or an Al 2 O 3 crucible. The Al‐O and Ti‐O relations in liquid iron were studied, and nitride and sulfide capacities defined by and , respectively, were obtained from nitrogen and sulfur distribution ratios, coupled with the analyzed oxygen content in liquid iron or the P O2 determined by Ti/TiO 2 equilibrium. Based on these results, activities of Al 2 O 3 and activity coefficients of TiO 2 and TiO 1.5 were evaluated.