About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
High Performance Steels
|
| Presentation Title |
Thermophysical and Thermodynamic Properties for Numerical Simulations of Macrosegregation and Mesosegregation in Steel Ingot Castings |
| Author(s) |
Adrian S. Sabau, Owain S. Houghton, Gregory B. Olson |
| On-Site Speaker (Planned) |
Adrian S. Sabau |
| Abstract Scope |
For macrosegregation and mesosegregation predictions, accurate material properties are critical to ensure realistic simulations of physical behavior. In this presentation, material property data are calculated for five low-carbon steel compositions using ThermoCalc, CompuTherm, FactSage and JmatPro software. They are compared with property data previously used for numerical simulations in previous studies . The steel compositions were selected as a representative set of steels used in industry by including ferritic and austenitic compositions. Critical properties include thermo-solutal coefficients, thermal expansion coefficients and solute partitioning during solidification. Based on calculated material properties, the critical Rayleigh number, as defined in the literature for channel segregation, was estimated. Numerical simulations were conducted using ProCASTTM software and CompuTherm property data for five steels. Numerical simulation results for macrosegregation are presented. An assessment of correlations between direct numerical simulation results and critical Ra number criterion for channel segregation is presented. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Computational Materials Science & Engineering, Modeling and Simulation |