On the cyclic stability of nanocrystalline copper obtained by powder consolidation at room temperature

Cyclic stability of ultrafine-grained and nanocrystalline (NC) copper (Cu) obtained by room temperature powder consolidation using equal channel angular pressing (ECAP) was investigated. The improved cyclic stability of NC Cu as compared with its ECAP-processed bulk counterpart is mainly attributed to the larger volume fraction of high-angle grain boundaries.