The applications of conventional forming techniques such as
forging [1] and extrusion [2] in the manufacture of magnesium
products have offered a wider field for the utilization of Mg and
its alloys. In particular, rolling could be effectively used in fabricating
thin Mg sheets with fine grains that are suitable for the manufacture
of complex Mg parts with thin-walled geometries used in
automotive and electrical industries However, due to its poor
formability in room temperature, which is essentially attributed
to the limited slip systems owing to its hcp structure, the deformation
of Mg alloys is usually conducted at intermediate or high temperatures.
The resulting microstructure evolution associated with
the occurrence of twinning or dynamic recrystallization (DRX)
has a strong dependency on the forming parameters like strain,
strain rate and temperature. This is a complicated process so that
it is difficult to analyze the change of forming parameters during
the deformation as well as their effect on the microstructure evolution
only through experimental observations