Abstract
A recovery-annealing method of AZ31B magnesium alloy treated by electropulsing is applied in two-stage plastic deformation, and a comparative study on the recovery behavior stimulated by electropulsing treatment (EPT) and heat treatment (HT) is investigated. The microstructure, mechanical properties, and recovery process are evaluated, and then the mechanisms for the effect of pulse current are discussed. The results show that EPT is feasible as a recovery-annealing method. The reduced dislocation density implies its positive effect on dislocation mobility and annihilation which mainly accounts for the efficient results in the recovery under EPT. Moreover, EPT appears more efficient in the recovery than HT and the recovery kinetics intensifies by EPT. The model of recovery kinetics under EPT is proposed, and it is used to predict the flow stress in two-stage plastic deformation.
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Acknowledgments
This research was funded by the National Science Fund for Distinguished Young Scholars (51925504), Foundation for Innovative Research Groups of the National Natural Science Foundation of China (52021003), the National Key Research and Development Program of China (2018YFF01012400), the National Defense Science and Technology Bureau Project (JSJL2018110A001), and the National Science and Technology Innovation Leading Academic (Ten Thousand Talent Program), Graduate Innovation Fund of Jilin University (101832020CX114).
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Zhang, M., Wang, W., Zhang, J. et al. The Recovery Behavior of AZ31B Magnesium Alloy Stimulated by Electropulsing Treatment and Heat Treatment. J. of Materi Eng and Perform 31, 8346–8354 (2022). https://doi.org/10.1007/s11665-022-06867-5
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DOI: https://doi.org/10.1007/s11665-022-06867-5