Stress relaxation tests along stress-strain curves of these magnesium alloys were used to determine the activation volume at various test temperatures. The applied stress was separated into its effective stress and internal stress components. The variations of the activation volumes with the effective stress were examined.

Study of Thermally Activated Dislocation Motion in AJ51 and AE42 Magnesium Alloys. P.Lukáč, Z.Trojanová: Journal of Physics - Conference Series, 2010, 240[1], 012019