Constitutive modeling and microstructure characterization of 2196 Al-Li alloy in various hot deformation conditions

Isothermal compression tests of 2196 Al-Cu-Li alloy were carried out at different temperatures (633∼793 K) and strain rates (0.001∼10 s−1) on Gleeble-3500 thermal simulator until the compression reached 60 %. According to the obtained stress-strain data, the flow behavior of 2196 Al-Li alloy during thermal deformation was investigated. The Arrhenius constitutive equation of the alloy based on the hyperbolic sine function model was established. A...