| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
High Performance Steels
|
| Presentation Title |
Nucleation during Static Recrystallization of Austenite - A Combined Experimental and Modeling Approach |
| Author(s) |
Pablo Garcia Chao, Vitesh Shah, Jonathan Joe Eipe, Jesus Galan-Lopez, Monika Krugla, Winfried Kranendonk, Jilt Sietsma, Cornelis Bos, Sven Erik Offerman |
| On-Site Speaker (Planned) |
Pablo Garcia Chao |
| Abstract Scope |
The implementation of new steels with improved performance can be compromised by the time-consuming setups typically required in the actual production line. To minimize the number of trials needed, models comprising realistic microstructural topology represent a more robust approach. Following this line, this study intends to predict the evolution of microstructure during static recrystallization (SRX) of austenite using a 3D cellular automaton (3D-CA). Prediction of nucleation through a physics-based sub-model is emphasized, since present recrystallization models are found to lack accuracy when topology is incorporated. The role of the oriented early growth of recrystallized grains in the competition between potential nucleation sites is also considered. Additionally, the competition between the various nucleation sites (namely, multiple grain junctions and grain boundaries) is investigated via electron backscatter diffraction (EBSD) experiments performed in a Fe-Ni alloy. The mechanism of nucleation at multiple grain junctions is also discussed in the light of experimental evidence. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Characterization, Modeling and Simulation |