Temperature Dependence of Hall–Petch Parameters Using In Situ Diffraction Experiments in AZ31 Alloy

Abstract The temperature evolution of the Hall–Petch parameters for basal slip and twinning systems has been evaluated AZ31 alloy, using synchrotron radiation diffraction during compression tests from room to 473 K. alloy was processed following two processing routes, casting powder metallurgy, obtain different grain sizes with a similar strong fiber texture. Although macroscopic plasticity is controlled by tensile twinning, stress activation can also be calculated. At low temperatures, size dependence much higher than that slip. However, prevails at K, especially through metallurgy route, because tendency deformation.