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论文类型： 期刊论文

发表时间： 2016-12-01

发表刊物： ACTA METALLURGICA SINICA-ENGLISH LETTERS

收录刊物： SCIE、EI、Scopus

卷号： 29

期号： 12

页面范围： 1127-1135

ISSN号： 1006-7191

关键字： Dynamic recrystallization; Austenite; DRX cycle; Cellular automaton; Mesoscopic modeling

摘要： 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.