MICROSTRUCTURE AND MECHANICAL PROPERTIES OF COMMERCIAL PURITY COPPER RESULTING FROM REPEATED GROOVE PRESSING FOLLOWED BY COLD ROLLING

摘要

Groove pressing (GP) is a severe plastic deformation technique for producing ultra fine grain sized microstructures in metals and alloys. In the present study, groove pressing and a two-step process of groove pressing followed by cold rolling was used to investigate the potential of these processes to produce ultra fine grained copper with significantly enhanced strength. Mechanical and microstructure properties were evaluated after groove pressing and after groove pressing followed by cold rolling. The advantages conferred by groove pressing prior to cold rolling on producing copper with enhanced properties has been investigated.