A_a 1.49e7[1/s] Pre-exponential factor Q_R_a 10830[K] Activation energy/Boltzmann's constant m_a 0.303 Strain rate sensitivity of stress n_a 0.0231 Sensitivity for deformation resistance a_a 1.34 Strain rate sensitivity of hardening sh_a 80.42[MPa] Coefficient for deformation resistance saturation s0_a 56.33[MPa] Initial value of deformation resistance xi_a 11 Multiplier of stress h0_a 2640.75[MPa] Hardening constant T0 313[K] Initial temperature