Texture transformations near the bonding zones of the three-layer Al/Ti/Al explosively welded dads

摘要

Al/Ti/Al explosively welded dads were analyzed by electron backscatter diffraction. Particular attention was drawn to texture evolution across the Al/Ti/Al interfaces. Significant changes in texture within the joined metals were conducted with the place of detonation of explosive material. The so-called base (lower) Al clad is characterized by a typical rolling texture exhibiting copper and brass components, while the flyer (upper) clad, located closer to the detonation wave front, transformed to a shear texture with rotated cube and {111} <110> components. The shear deformation also changes substantially the texture of Ti producing a much higher twin density. The observed changes unveil the effect of explosion on the microstructure of the joined metals and are discussed with respect to deformation mode and further annealing process.