Acoustic properties of TiNi-based alloys

The specific features of the change in the acoustic properties of TiNi-based alloys are studied in a broad temperature internal. It is shown that in the temperature range of loading-induced martensite transformations, there is a region of long-term and small-amplitude low-frequency sound oscillations. The method of Fourier analysis is used to determine the frequency-amplitude characteristics of quasipcriodic oscillatory processes in TiNi-based alloys. In the temperature interval considered, the free low-frequency oscillations of the TiNi-based sample are characterized by a low level of damping.