Deformability of ultrahigh strength 5nm Cu∕Nb nanolayered composites

• DOI: 10.1063/1.2938921
• Publication Date: 2008-06-09T22:23:21Z
• Authors: N. A. Mara; D. Bhattacharyya; P. Dickerson; R. G. Hoagland; A. Misra
• Keywords: Ductility (Earth science); Flow stress; Strain (injury)

In this work, micropillar compression testing has been used to obtain stress-strain curves for sputter-deposited Cu–Nb nanolaminate composites with nominal bilayer thickness of 10nm. addition the extremely high flow strength 2.4GPa, 5nm Cu∕5nm Nb exhibits significant ductility, in excess 25% true strain.