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The hot deformation behavior of extruded ZK60 magnesium alloy was investigated by compression tests in the temperature range of 250–400°C and strain rate range of 0.001–1s−1. In order to describe the flow characteristics, a constitutive equation was developed and the deformation activation energy was estimated to be 126.31kJ/mol. The three-dimensional (3D) processing maps were established on the basis...
Based on the Gleeble-1500 thermomechanical simulation tests of magnesium alloy AZ31B, a new model of flow stress characterizing dynamic recrystallization (DRX) for magnesium alloy was put forward. Theoretically, in the flow rule the atomic diffusibility and the driving force of dislocation migration are dependent on the temperature, and the dislocation density and the cumulation of grain boundary...
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