ABSTRACT
Mechanical properties of Cu/Ni multilayered composites processed by electrodeposition were investigated by tensile tests at different strain rates in the specific range at room temperature. This chapter investigates the tensile properties of the electrodeposited Cu/Ni multilayered composites with different deposition time and strain rates. Dog-bone shape tensile specimens of pure Cu, Ni, and Cu/Ni multilayered composites were fabricated by wire-electrode cutting. The hetero-deformation induced (HDI) stress caused by the Cu/Ni layer boundaries also increased with strain rate. Strong HDI work hardening is observed, which is the main reason for the observed good ductility. The increase of strength is mainly due to the HDI-stress of Cu/Ni multilayered composites caused by the Cu/Ni layer boundary, which increases with increasing strain rate. And the increase of uniform elongation can be attributed to the increase of strain rate sensitivity and the HDI work hardening by the Cu/Ni layer boundaries, which help delay the onset of necking during tensile tests.
