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Cylindrical, flat-nose, 4340 steel projectiles (2.0cm height) were impacted onto Ti–6Al–4V targets (2.5 thick) at velocities ranging from 633 to 1027m/s. Plug formation was observable at 633m/s and exited the target between 1006 and 1027m/s. Adiabatic shear bands (ASBs) composed of dynamically recrystallized (DRX) grains and cracks formed both vertically and horizontally (parallel or perpendicular)...
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