The recrystallization of cold rolled copper has been investigated using both differentialscanning calorimetry (DSC) and Vickers microhardness techniques. The activation energy ofthe recrystallization process has been determined by microhardness and by DSC underisochronal conditions. The DSC results have been analyzed using models developed byKissinger, Ozawa and Boswell. In addition, the recrystallized fraction, as a function oftemperature, has been determined from the DSC analysis and compared to that obtained bymicrohardness measurements.