Table 4:

Material parameters used for the constitutive model

Parameter	Value	Units
${\sigma }_o$	700	MPa
${\sigma }_1$	1335	MPa
${\sigma }_2$	400	MPa
${\theta }_0$	27.81
$n$	0.6124	-
$C_1$	0.004128	-
$C_2$	0.22037
${\dot{\epsilon }}_o$	10−4	1/s
$m$	1	-
$E$	0.02783
$T_r$	295	K
$T_m$	1773	K