A dilatometric and high-temperature X-ray diffraction study of cold deformation effect on the interaction between precipitation, recovery and recrystallization reactions in Al-12Â wt.% Mg alloy

▶ Deformed supersaturated solution of Al-12%Mg alloy shows new dilatometric events. ▶ Recovery reaction induces a drop in the thermal expansion coefficient. ▶ In the beginning of heating, recovery process is limited by the solute drag effect. ▶ The increasing of recovery depends on the reduction of Mg content by precipitation. ▶ Recrystallization induces an increasing of the thermal expansion coefficient.