σ	True stress (MPa)
ε	True strain
$\dot{\epsilon }$	Strain rate (s−1)
T	Deformation temperature (K)
m	Strain rate sensitivity index
n	Strain hardening index
Q	Apparent activation energy (J·mol−1)
R	Gas constant (8.3145 J·mol−1·K−1)
α	Material constant (MPa−1)
A	Yield stress (MPa)
B	Coefficient of strain hardening
C, AHS, m1, m2, m3, m4, m5, m6, m7, m8, B1, B2	Material parameter
${\dot{\epsilon }}^{*}$	Dimensionless strain rate
${\dot{\epsilon }}_0$	Reference strain rate (s−1)
T*	Homologous temperature
Tm	Melting temperature (K)
Tr	Reference deformation temperature (K)