Abstract
A mesoscopic cellular automaton model that takes into account grain deformation during hot deformation has been developed to quantitatively depict the microstructural evolution of the austenite dynamic recrystallization (DRX) in a low-carbon steel. Both the grain deformation and the concept of DRX cycle are introduced, allowing accurate depictions of the grain structures, the overall microstructural properties and the flow stress evolutions that involving in the austenite DRX. The simulation results are compared with the experimental results and the predictions by the macroscopic DRX model and are found to be in good agreement.
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The author C.W. Zheng gratefully acknowledges the financial supports from the National Natural Science Foundation of China (NSFC) under Grant Nos. 51401214 and 51371169.
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Ma, X., Zheng, CW., Zhang, XG. et al. Microstructural Depictions of Austenite Dynamic Recrystallization in a Low-Carbon Steel: A Cellular Automaton Model. Acta Metall. Sin. (Engl. Lett.) 29, 1127–1135 (2016). https://doi.org/10.1007/s40195-016-0502-2
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DOI: https://doi.org/10.1007/s40195-016-0502-2