Thermo-mechanical behaviour of nanostructured copper

Strain rate sensitivity is measured using jump test, with respect to strain rate and temperature on nanostructured copper. The nanometal, prepared by powder metallurgy technique, is tested at room temperature over the range 1 × 10−5 s−1 to 1.8 × 10−2 s−1, and at moderate temperatures, between 353 K and 393 K (homologous temperature T/Tm: 0.26–0.29), over the range 1 × 10−5 s−1 to 9 × 10−3 s−1. Results are discussed in terms of potential ductility and forming ability.