Abstract
Abstract The hot deformation behavior of AA5083 aluminum alloy was studied using isothermal compression tests with a Gleeble–3500 thermal simulator at strain rate of 0.01–10 s−1 and at temperature of 300–500 °C. The experimental results indicate that dynamic recrystallization (DRX) tends to occur at high strain rates and temperatures, and therefore the flow stress is decreased. To predict the flow behavior under different deformation conditions, a strain-compensated constitutive equation based on Arrhenius-type equation and Zener–Hollomon parameters was proposed. The flow stresses obtained from the constitutive equation are consistent with the experimental results. The average absolute relative error is only 4.52% over the entire experimental range, indicating that the proposed constitutive equation exhibits high prediction precision for the hot deformation behavior of AA5083 aluminum alloy.
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