BALLISTIC LIMITS OF AL-6-PERCENT-MG ALLOY PLATES LAMINATED BY DIFFUSION BONDING

Ballistic limits are obtained for Al-6% Mg alloy plates laminated by d iffusion bonding. While all layers are made of the same metal alloys, time of diffusion and number of layers can be altered to change the in terlaminar strength and hence the interfacial energy of dissipation. A n optimum laminate thickness relative to the spherical projectile diam eter was found for a projectile velocity of about 10(3) m/s, where ene rgy dissipated in the laminate was found to be appreciable in comparis on with that for a homogeneous plate made of the same material and thi ckness.