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Characterization and Modeling of the High Temperature Flow Behavior of Aluminum Alloy 2024 P.L. CHARPENTIER, B.C. STONE, S.C. ERNST, and J. F. THOMAS, Jr. Isothermal flow curves were determined for aluminum alloy 2024-0 at temperatures of 145 to 482 ~ and at constant true-strain rates of 10-3 to 12.5 s-~ using compression tests of cylindrical specimens. The average pressure was corrected for friction and for deformation heating to determine the flow stress. At 250 ~ and above, the isothermal flow curves usually exhibited a peak followed by flow softening. At 145 ~ the flow curves exhibited strain hardening. For 250 ~

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