A thermodynamic model was developed to predict slag-steel-inclusion reactions of 304 stainless steels.The dissolved aluminum in the steel, the sulfur distribution ratio and the composition of inclusions equilibrated with varying slags were predicted using the current model.The model can also be widely used to predict the liquid fraction of inclusions.For Al-killed 304 stainless steels, the optimized composition of CaO-Al 2 O 3 -SiO 2 -MgO slags is proposed to modify solid Al 2 O 3 inclusions to liquid CaO-Al 2 O 3 -MgO at 1 873 K.For Si-Mn-killed 304 stainless steels, the optimized composition of CaO-SiO 2 -MgO-Al 2 O 3 -20%CaF 2 slags is suggested to suppress the formation of Al 2 O 3 -MgO in SiO 2 -CaO-MnO-MgO-Al 2 O 3 inclusions and lower their melting temperatures.
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Ren et al. (2016) studied this question.
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