| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
11th International Symposium on High Temperature Metallurgical Processing
|
| Presentation Title |
The Application of an Effective Equilibrium Reaction Zone Model Based on CALPHAD Thermodynamics to Steel Making |
| Author(s) |
Paul Mason, Nicholas Grundy, Ralf Rettig, Lina Kjellqvist, Johan Jeppsson, Ake Jansson, Johan Bratberg |
| On-Site Speaker (Planned) |
Paul Mason |
| Abstract Scope |
TCOX9 is a thermodynamic database (developed using CALPHAD) which describes the thermochemical interactions between liquid steel and slag during steel making and refining. It contains all the major steel alloying elements (Fe-C-Co-Cr-Cu-Mn-Mo-Nb-Ni-V-W-Ti) as well as the most important slag elements (Ca-Mg-Si-Al-F-O-P-S). The ionic liquid model describes the liquid phase over the whole composition range from metallic liquid (steel) to oxide liquid (slag). The database also contains the most important metallic and non-metallic solid phases, meaning inclusion formation, inclusion modification, steel solidification, slag solidification, steel-refractory reactions, slag-refractory reactions and steelmould powder reactions can be calculated.
For use with this database, a new process metallurgy module has also been developed within Thermo-Calc which incorporates a kinetic model of the steelmaking process based on the concept of effective equilibrium reaction zones. This model and some example applications to steel making practices for existing and new grades will be described. |
| Proceedings Inclusion? |
Planned: |