The precipitation of non‐metallic inclusions in Ti‐deoxidised steels is analysed with the multiphase equilibrium code CEQCSI which is based on the IRSID slag model. For that purpose, the slag model has been extended to systems containing titanium oxides, using data available in the literature, and validated with industrial results obtained on various steel grades. Applications concerning slag‐metal reactions in ladle metallurgy are described. 2 applications concerning inclusions in Ti‐deoxidised steels are also presented: (a) experimental study of the effect of steel contamination by magnesia refractory lining on the composition of oxide inclusions in a Ti‐deoxidised steel: there is a good correlation between analysed oxide compositions and compositions predicted by the model; (b) evaluation of the optimised steel composition to obtain Al 2 O 3 ‐TiO 2 inclusions during solidification for steels pertaining to the so‐called “metallurgy of oxides in steels”.
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Ruby‐Meyer et al. (2000) studied this question.
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