Abstract :
The potential of ECAP sheet machine
build in Monash University to refine the grain size,
enhance mechanical properties, and improve deep
drawability of the sheet was investigated for a
representative aluminum alloy, AA5005. The annealed
sheet was subjected to one, two, or four
ECAP passes through 90º using route A or route C
followed by annealing at 400 C for 15 min. It was
established that only one ECAP pass is required to
obtain a significant improvement in both normal and
planar anisotropy. A subsequent annealing enabled
the recovery of ductility of the material lost during
ECAP while maintaining the improved plastic
anisotropy.
