首页|Double effects of recrystallization behavior on grain morphology evolution and mechanical properties of Al/Mg/Al composite plate by hard plate rolling
Double effects of recrystallization behavior on grain morphology evolution and mechanical properties of Al/Mg/Al composite plate by hard plate rolling
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Enhancing the bonding strength,optimizing the microstructure and refining the properties represent effective strategies for the fabrication of heterogeneous composite plates.In this study,composite plates of Al/Mg/Al were fabricated through hard plate rolling(HPR)with a reduction in rolling ranging from 40％to 80％.The research primarily concentrates on the substrate in the influence of rolling dynamic recrystallization(DRX)behavior on the grain morphology evolution and mechanical properties of AZ31 magnesium alloy sheets during the process.The findings indicate that at a compression amount of 60％,the composite plate exhibits an ultimate tensile strength(UTS),a maximum elongation(EL)of 12.5％,and improved interface bonding.Comparative analysis reveals the occurrence of DRX on the Mg side,resulting in the formation of small DRXed grains being generated.With an increase in reduction,DRX is facilitated,leading to an initial rise and subsequent decline in the proportion of DRXed grains.The proliferation of fine grains hinder dislocation movement,thereby reinforcing composite plate.Moreover,an elevation in the degree of recrystallization enhances the initiation of non-basal slip and enhances the plasticity of sheet metal.This study offers valuable scientific guidance and technical assistance for the pro-duction of forming high-quality Mg-Al composite plates.
Hard plate rollingAl/Mg/AlComposite plateDynamic recrystallizationMechanical properties
Jia Yang Zhang、Feng Li、Fu Wei Kang、Zi Yi Wang、Lu Sun
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School of Materials Science and Chemical Engineering,Harbin University of Science and Technology,Harbin,150040,PR China
Key Laboratory of Advanced Manufacturing and Intelligent Technology,Ministry of Education,Harbin University of Science and Technology,Harbin,150080,PR China
Heilongjiang Provincial Key Laboratory of Light Metal Materials Modification & Green Forming Technology,Harbin University of Science and Technology,Harbin,150040,PR China
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