Structural Studies and the Rheology of Convergence of Thick-Wall Al–Mg Shells

The deformation behavior of the thick-walled hollow cylindrical shells made of an AMg6 alloy (6.1 Mg, 0.6 Mn, 0.1 Ti, 0.2 Si, and Al for balance, wt %) loaded using an 8-point initiation scheme of an attached explosive has been considered. The intensity of explosive loading is controlled by an amount of explosives. It has been established that different scenarios for convergence of the shells are observed depending on the intensity of impact and the geometric parameters of the shells. The conditions for the formation of the spallation inner layers have been determined, the structural evolution under high-speed radial deformation and that along the length of the shells together with the change in the radial hardness of the shells have been studied. X-ray radiography of the dynamics of the deformation processes in the shells has been performed for different time intervals. The speeds of the motion of the outer and inner layers of the shells and their deformation rates for different amounts of explosives have been determined.