Title: Effect of friction stir processing parameters on the microstructural and electrical properties of copper published International Journal of Advanced Manufacturing Technology.
IPLeiria authores: Rui Leal
Friction stir processing (FSP) is an innovative technology, based on friction stir welding (FSW) operative principles, which can be used for changing locally the microstructure and mechanical properties of conventional materials. Copper C12200 was friction stir processed using scrolled and conical shoulder tools in order to promote different thermomechanical conditions inside the stirred volume and varied post-processed microstructures. The processing conditions were found to have influence on the electrical conductivity of the processed materials. The differences in electrical conductivity are explained based on dislocation density effects, being found that the dislocation density effect prevails over the grain boundary effect.