CHARACTERISTICS OF OXIDE PRECIPITATION AND GROWTH DURING SOLIDIFICATION OF DEOXIDIZED STEEL

With the help of thermodynamics and kinetics, the oxide metallurgy wit h respect to Ti treatment of low carbon steels is theoretically analys ed. It is attempted to define and predict the optimal conditions for d eoxidation of molten steel, which are decisive factors for controlling secondary inclusions, using the analysing method described below. The composition and growth of oxides during solidification are obtained b y calculation featuring a good agreement with reported experimental re sults. But the present analysing model needs to be further modified in view of deoxidation kinetics.