Ballistic limits of Al-6% Mg alloy plates laminated by diffusion bonding

Abstract Ballistic limits are obtained for Al-6% Mg alloy plates laminated by diffusion bonding. While all layers are made of the same metal alloys, time of diffusion and number of layers can be altered to change the interlaminar strength and hence the interfacial energy of dissipation. An optimum laminate thickness relative to the spherical projectile diameter was found for a projectile velocity of about 103 m/s, where energy dissipated in the laminate was found to be appreciable in comparison with that for a homogeneous plate made of the same material and thickness.