| About this Abstract |
| Meeting |
2010 TMS Annual Meeting & Exhibition
|
| Symposium
|
Computational Thermodynamics and Kinetics
|
| Presentation Title |
Phase Field Modelling of Austenite Formation from
a Ferrite-Carbide Lamella Structure
|
| Author(s) |
Hamid Azizi-Alizamini, Matthias Militzer, Warren Poole |
| On-Site Speaker (Planned) |
Hamid Azizi-Alizamini |
| Abstract Scope |
In this study, austenite formation from a lamella ferrite-carbide structure in a plain C-Mn steel was simulated using a phase field approach in two- and three-dimensional space. The model quantitatively describes the kinetics of austenite formation during contineous heating of a lamella ferrite-carbide aggregate to form a fully austenite structure. Simultaneously, it is also capable of capturing spheroidization of carbide lamella during heating. The model can resolve the interlamellar spacing of about 500 nm to mimic the morphological complexity of microstructural features during austenite formation. The interface mobility was used as a fitting parameter to obtain agreement between the simulation results and experimental data for the transformation kinetics. |
| Proceedings Inclusion? |
Definite: A CD-only volume |