Abstract
A decrease in the stress of unidirectional plastic deformation during the superposition of oscillations was observed at high ultrasonic frequencies. In a recently published paper, this effect was experimentally studied at low frequencies (about 1 Hz). Such low frequencies allowed the process kinetics to be studied in a sufficiently detailed manner. However, no satisfactory explanation was given for the effects observed. In the present study a model is proposed which describes the process of plastic deformation of a crystal in the field of alternating stresses; this model correlates fairly well with the experimental results obtained both at low frequencies and at higher frequencies.
Published Version
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