Effect of Initial Grain on Mechanical Properties of AZ31 Alloy during Warm Forming

Qiang Wang; Zhi Min Zhang; Xing Zhang

doi:10.4028/www.scientific.net/AMM.217-219.2304

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 217-219Effect of Initial Grain on Mechanical Properties...

Effect of Initial Grain on Mechanical Properties of AZ31 Alloy during Warm Forming

Abstract:

Plane strain compression were carried out for as-cast and pre-strained AZ31 alloy specimens at 210～330°C. The influence of initial grain on strengthening effect was analyzed by means of metallographic examination and mechanical testing. The results indicate the recrystallized grain of Mg alloy is sensitive to initial grain. With the deformation temperature increasing, the ultimate tensible strength decreases for as-cast and pre-strained alloy. With the deformation degree increasing, the tensile strength presents an increasing trend for as-cast alloy, but the tensile strength decreases on the whole for pre-strained alloy. The tensile strength increments of ～50% can be achieved under appropriate processing conditions.