Abstract
A multi-phase-field model has been developed to simulate the microstructure evolution and kinetics of the austenite static recrystallization (SRX) in a C–Mn steel. In this model, the bulk free energy that coupling the deformation stored energy with a special interpolation function is incorporated. Both the deformed grain topology and the deformation stored energy have been included in order to investigate the influence of pre-deformation on the subsequent austenite SRX at different hot deformation levels. Diverse scenarios of microstructure evolution show different deformation-dependent recrystallized grain sizes. The transformation kinetics is then discussed by analyzing the overall SRX fraction and the average interface velocity on the recrystallization front.
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Acknowledgements
This work was financially supported by the National Science Foundation of China (Grant No. 51371169) and (Grant No. 51401214).
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Zhang, J., Zheng, CW. & Li, DZ. A Multi-phase Field Model for Static Recrystallization of Hot Deformed Austenite in a C–Mn Steel. Acta Metall. Sin. (Engl. Lett.) 31, 208–215 (2018). https://doi.org/10.1007/s40195-017-0595-2
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DOI: https://doi.org/10.1007/s40195-017-0595-2