The isothermal compression deformation test of QAl 10-4-4 alloy was carried out by using Glee-ble-3500 thermal simulator under the conditions of deformation temperature of 750～900℃ and strain rate of 0.01～10s-1. The results show that the rheological stress of the alloy increases with the increase of strain rate and decreases with the increase of strain temperature within the test range. The high-temperature rheological stress behavior of QAl 10-4-4 alloy was described by Zener-Hollomon parameters,and the constitutive e-quation was established,and the deformation activation energy Q was 368.685 kJ/mol. The thermal process-ing diagram was constructed,and the optimal thermal working technology of QAl10-4-4 alloy was obtained:860～900℃,and the strain rate was 0.01～0.2s-1.
QAl 10-4-4 copper alloyThermal compression deformationConstitutive equationsThermal processing diagram
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