Evaluation of the Parameters of a Constitutive Mode1 for b.c.c. Metals Based on Thermal Activation F. Buy, J. Farre, J. R. Klepaczko et G. TalabartJ. Phys. IV France, 07 C3 (1997) C3-631-C3-636DOI: https://doi.org/10.1051/jp4:19973108