the flow stresses were different quantitatively , but a similar trend was observed like that
in the rolling direction. Different true strains were
determined for each temperature. The behaviors in
the transverse direction were also different quantitatively
from those in the rolling and transverse directions.
Fig. 2 clearly illustrates that the material has
very complex behavior. The effects of anisotropy
and warm temperature were significant. Especially,
the anisotropy and warm temperature issues were
not reported previously.