Abstract
A relation between the acoustic signal and the dynamics of the first deformation bands at the initial stage of development of the plastic deformation jump in the artificially aged AMg6 alloy has been established using the high-speed video recording and simultaneous measurement of the acoustic emission signal. It has been demonstrated that a sharp increase in the potential of a piezoelectric transducer in the first approximately 10 ms of the development of the deformation jump is the most informative characteristic of the acoustic signal. The mechanisms of propagation of deformation bands and generation of acoustic signals, as well as the possible use of acoustic precursors of plastic deformation jumps, have been discussed.
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