Interface characteristics and mechanical properties of titanium/aluminum composites with an interlayer fabricated by explosive welding

In this work, the interface morphology and element distribution of the TC1/AA1060/AA6061 composite plate were studied. The grain information was investigated by electron backscattered diffraction and interface temperature was obtained by numerical simulation to explain the grain information. The experimental samples were tested by mechanical methods. The results show that the TC1/AA1060/AA6061 composite plate has better welding quality by observing interface morphology and testing mechanical properties. The morphology of the two interfaces was consistent with the simulation results, and the interface temperature can be explained by the grain information at interfaces and vortex regions. The diffusion width of elements at the TC1/AA1060 interface was 12.3 µm and no intermetallic compounds were detected; Only Al and O element were detected in two vortex regions. In addition, nanoindentation test was performed at different regions and the results were discussed.