Damping in AZ31 ECAP-Processed Alloy
Study of anelasticity in AZ31 magnesium-based alloy in initial (hot-rolled at 370 оС) condition and after one and four passes of equal channel angular pressing is carried out. An internal friction peak was found at 170 °C at a frequency f of about 1 Hz. Two possible mechanisms of this peak are discussed: it is suggested that the peak origin is the grain boundary relaxation.
Igor S. Golovin and Daniil M. Levin
T. V. Ivleva et al., "Damping in AZ31 ECAP-Processed Alloy", Solid State Phenomena, Vol. 137, pp. 181-188, 2008