About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Real Time Imaging
|
Presentation Title |
Observation of Spinel Growth for Application in High Al-containing Steel Mold Fluxes |
Author(s) |
Il Sohn |
On-Site Speaker (Planned) |
Il Sohn |
Abstract Scope |
Ultra-light advanced high strength steels containing Al greater than 1 mass pct. has been commercially developed, but the production of these new grade of steels are hampered by the limitation of the mold flux performance during continuous casting. Reactions of existing calcium-silicate based fluxes with Al-containing steels are thermodynamically favored resulting in lubrication and heat transfer issues in the mold. Recent developments in spinel-based mold fluxes to inhibit steel/mold flux reactions are discussed and the in-situ crystallization and growth kinetics of spinels as the primary crystal phase within non-reacting mold fluxes are described. Varying composition and cooling rates are employed in the confocal laser scanning microscope to control the spinel crystals in the CaO-Al<sub>2</sub>O<sub>3</sub>-MgO-based system at high temperatures. |
Proceedings Inclusion? |
Planned: |