Thermodynamic Properties of Inclusions Formed Aluminum-Titanium Deoxidation of Molten Steel
Titanium alloyed steel has been widely used as automobile sheet steels, thick plate steels, and also stainless steels to improve the mechanical and chemical properties of many grade steels. Since Ti has strong affinity with oxygen, Ti is normally alloyed after Al deoxidation to keep the high yield of Ti. Therefore, Al-Ti deoxidation is one of the common and important secondary refining processes. Although the chemical stability diagram for this system has been reported by many researchers, these diagrams are inconsistent significantly each other. In the present study, the stability region of Al2TiOs oxide was measured by equilibrating Fe-Al-Ti alloy and Al2TiOs pellet in AI2O3 crucible at 1873 K. However, inclusions in metal after equilibration were Ti-containing AI2O3 or Al-containing TiOx. The precise phase diagrams and related thermodynamic data for the Al2O3-TiOx-FeO system should be determined.
thermodynamics inclusions Al2O3 TiOx submerged entry nozzle clogging phase diagram
WonjinCHOI KenjiNAKASE Hiroyuki MATSUURA Fumitaka TSUKIHASHI
Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8561 Japan
国际会议
The 2nd International Symposium on Clean Steel(第二届洁净钢生产技术学术研讨会)
沈阳
英文
298-300
2011-08-23（万方平台首次上网日期，不代表论文的发表时间）