Enhanced tensile ductility in an electrodeposited nanocrystalline Ni

A fully dense nanocrystalline Ni exhibited high strength of about 1200 MPa and enhanced ductility of 7.5–8.3% at strain rates of 1.04 × 10−4–1.04 s−1 and room temperature. The dislocation activity in the strain hardening stage and collective grains rotation after instability are suggested as being responsible for the enhanced ductility.