The bonding of nickel foam to Ti-6Al-4V using Ti-Cu-Ni braze alloy

▶ Nickel-based foams can be brazed to Ti-alloy sheets. ▶ The bond microstructure includes braze penetration into the hollow foam struts. ▶ Constraint of the bond allows poorer joints to make larger shear strains possible. ▶ Inherent variation in foam density affects properties less than process variability.