Recrystallization prediction of 5182 aluminum alloy hot-rolled sheet based on JMAK method
The effects of initial grain size,deformation temperature,strain,strain rate,and holding time on the recrystallization behavior of 5182 aluminum alloy hot-rolled sheet were systematically studied by dimensionality reduction and optimization of JMAK recrystalli-zation prediction model.Through a series of tests,independent effect of individual factors on recrystallization behavior were successfully obtained,and the coefficients of the JMAK pre-diction model were determined based on this.Combining the Deform thermoplastic deforma-tion prediction software,the study successfully predicted the distribution cloud map of re-crystallization volume fraction during the hot rolling process of 5182 aluminum alloy sheet was successfully predicted.A comparative analysis of the recrystallization volume fractions at typical locations on the hot-rolled sheet was conducted,showing that the maximum predicted error along the width direction of the sheet surface was less than 9.6％,while the maximum predicted error along the width direction of the sheet core was less than 10.9％.The result validates the effectiveness and accuracy of the recrystallization prediction model based on the JMAK method in predicting the recrystallization volume fraction of industrial hot-rolled sheets.
JMAK method5182 aluminum alloyrecrystallizationprediction model
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