The high-temperature flow behavior of 2024 Aaluminum alloy was investigated by isothermal hot rolling tests with a Gleeble-3500 thermal simulator.The true stress-strain curves of 2024 Awere obtained by isothermal hot compression tests at the temperature of 300～450℃and the strain rate of 0.01～10 s-1.The results reveal that the flow stress of 2024 Ahas a nonlinear relationship with temperature

strain rate and strain

where it is increased with the increase of strain rate and decrease of deformation temperature.The modified Arrhenius constitutive equation considering the compensation of strain and modified Johnson-Cook（M-JC）model were established based on the experimental data

respectively.Then

the statistical method was introduced to quantitatively evaluate the accuracy of the two models.The average absolute relative error（AARE）and root mean square error（RMSE）of the modified Arrhenius model are 5.02% and 5.88 MPa

and the corresponding values of the M-JC model are 3.72% and 5.27 MPa

respectively.Therefore

the prediction accuracy of M-JC model is superior to that of the modified Arrhenius model

so it can be applied to describe hot flow behavior of 2024 Aaluminum alloy during rolling process.