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VOLUME 60 (1994) | ISSUE 3 | PAGE 213
Anomalous attenuation of ultrasound in alloys with heterophase fluctuations
A mechanism is proposed for the attenuation of ultrasound in systems with disperse inclusions of a low-symmetry phase or regions with a low-developed short-range order. The mechanism is based on an analysis of thermally activated transitions of these regions between various "vacuum" states in the field of an ultrasonic wave. Corresponding experimental data on Ti-Fe and Cu-Mn alloys are explained. © 1994 American Institute of Physics.