Formation and Evolution of Al Ti Oxide I

Ti stabilized interstitial free (IF) steel is produced through a combination of primary and secondary steelmaking processes, significantly influenced by the addition of titanium (Ti) as an alloying element. This study aims to explore the interactions between aluminum (Al) and Ti during the deoxidation process and their effects on non-metallic inclusions in molten steel. Experimental methods included the analysis of inclusion compositions and thermodynamic calculations to evaluate the oxidation behaviors of Al and Ti. Results indicated that the presence of titanium affects both the morphology and composition of inclusions formed in the steel. Specifically, the study found that during Ti alloying, the Al2O3 inclusions transformed from angular to spherical shapes, thereby impacting the overall cleanliness and final quality of the steel product. These findings suggest that the oxidation dynamics of Al and Ti need careful consideration to enhance steel properties, particularly regarding toughness and strength. Thus, further investigation into the mechanisms of Ti containing oxides and their role in steel production is essential for optimizing production techniques and improving the mechanical properties of IF steel.