Flow Behavior of 2026 Aluminum Alloy During Hot Compression Deformation

The flow stress behavior of 2026 aluminum alloy during hot compression deformation was studied bythermal simulation test on Gleeble 1500 system at deformation temperature range from 300 ℃ to 500 ℃ and strain raterange from 0.01 s-1 to 10 s-1.The results show that the flow stress exhibits a peak stress at critical strain,the flow stressdecreases monotonically with the increase of strain,and then tends to be constant until high strain,showing a dynamicflow softening.The peak stress decreases with the increase of deformation temperature and the decrease of strain rate,which can be represented by a Zener-Hollomon parameter in the hyperbolic sine equation,its hot deformation activationenergy is 256.02 kJ/mol.The main soften mechanism of the alloy during hot compression deformation transforms fromdynamic recovery to continuous dynamic recrystallization.