Abstract
A study is made of the laws of variation of the acoustic properties of TiNi-based alloys depending on the alloy composition and the temperature. It is demonstrated that, in the temperature range of existence of the B2 phase and the possible strain-induced martensite formation, the vibrations of TiNiMoFe differ from those of conventional materials. Upon excitation of spontaneous vibrations in the Mf≤T≤Md range, there appears a region of long-term, small-amplitude low-frequency sound vibrations. It is found that free low-frequency vibrations of a sample of TN-10 alloy [1] are characterized by a low level of decrement in the above-indicated temperature range.
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