Numerical simulation and experimental study on non-uniform strain during hot compression of aluminium alloy
by Haigen Jian; Yedong Wang; Xiaomei Yang; Chengji Mi; Xinlei Lei; Wei Zhang
International Journal of Computational Materials Science and Surface Engineering (IJCMSSE), Vol. 10, No. 1, 2021

Abstract: The finite element numerical simulation of hot compression deformation process of B93 aluminium alloy was carried out by DEFORM-3D software. Besides, the microstructure characteristics of deformed specimens in different regions and the relationship between non-uniform strain and dynamic recrystallisation during deformation were analysed by experimental study. The results show that the hot compression process of B93 aluminium alloy obviously exhibits a nonuniform characteristic of deformation, the region with the largest equivalent strain is the most prone to deformation. Also, in the largest equivalent strain zone, dynamic recrystallisation reacts the most complete, and the grain size reaches the minimum value. Nonuniform deformation show a rising tendency with the increase of strain rate and deformation temperature, and the influence of strain rate on nonuniform deformation is slightly greater than that of deformation temperature. The most suitable hot working process for the alloy is 410~430°C/0.001~0.01s^-1.

Online publication date: Wed, 28-Jul-2021

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