Being the lightest structural element, magnesium and its alloys has attracted significant interes in the last years, but because of its hexagonal close packed structure, magnesium presents relatively low strength and ductility. One of the methods to improve the mechanical properties of the processed materials is through Severe Plastic Deformation (SPD). ZK60 magnesium alloy samples were subjected to 4 passes of equal-channel angular pressing (ECAP) at a processing temperature of 250°C, following route A. The microstructure was determined with an Olympus BX51 optical microscope. Differential Scanning Calorimetry (DSC) was used to estimate the stored energy and the recrystallization temperature after each ECAP pass.