Formation and Evolution of Inclusions in High Chromium Steel

Controlling inclusion content in high chromium steel is very important to prevent submerged entry nozzle from clogging continuous casting and avoid the negative impacts of inclusions on properties. Therefore, effects temperature elements phase stability diagram should be clarified bearing steel. However, effect boundaries MgO, MgO∙Al2O3 Al2O3 are much different among researchers. The direction shift affected by differently. Temperature dependencies deoxidation equilibrium constants below 1873 K also scattered. Calcium, which used inclusion, enlarges liquid region diagram. replaced oxide understood differently low alloyed In TiOX–Al2O3–MgO system commercial thermochemical software predicts that Ti2O3, Ti3O5, TiOx–Al2O3 toward lower titanium calculated diagrams vary studies even iron or experiments under various conditions reliable technique thermodynamic calculation with accuracy desired.