  The mechanisms of deformation and failure of Cu/Nb nanolaminates manufactured
by accumulated roll bonding were analysed using in-situ TEM mechanical tests.
Dog-bone small-scale tensile specimens were prepared using a FIB-based
technique with the layers parallel and perpendicular to the loading axis. Load,
deformation and TEM micrographs were recorded during the in-situ TEM mechanical
tests. The specimens deformed parallel to the layers presented very high strain
hardening and ductility while those deformed in the perpendicular orientation
were more brittle. These results were rationalized in terms of the deformation
and fracture mechanisms observed during the tests.
