Cracking and Toughening Mechanisms in Nanoscale Metallic Multilayer Films: A Brief Review
Nanoscale metallic multilayer films (NMMFs) have captured scientific interests on their mechanical responses.Compared with the properties of monolithic films, multilayers possess unique high strength as the individual layer thickness reduces to the Fragrance nanoscale, which is benefited from the plentiful hetero-interfaces.However, NMMFs always ex