Study on Flow Behavior of 3104 Aluminum Alloy During Hot Compression Deformation at Elevated Temperature

The hot compression deformation test of 3104 aluminum alloy at elevated temperature was performed on Gleeble-1500 system under the deformation temperature range from 300 ℃ to 500 ℃ the and strain rates from 0.01 s-1 to 20 s-1. The results show that the flow stress of 3104 aluminum alloy increases with strain increasing and tends to constant after a peak value at lower strain rate, showing dynamic recover. The flow stress fluctuates in sawtooth and decreases after a peak value with strain increasing at higher strain rate, showing discontinuous dynamic recrystallization. Constitutive analysis shows that the peak stress can be represented by a Zener-Hollomon parameter in the hyperbolic-sine-type equation, the hot deformation activation energy is 215 kJ/mol.