Drift of dislocation tripoles under ultrasound influence.

Ultrasonics

Institute for Metals Superplasticity Problems of Russian Academy of Sciences, 450001 Ufa, Russia; Bashkir State University, 450074 Ufa, Russia.

Published: January 2016

Numerical simulations of dynamics of different stable dislocation tripoles under influence of monochromatic standing sound wave were performed. The basic conditions necessary for the drift and mutual rearrangements between dislocation structures were investigated. The dependence of the drift velocity of the dislocation tripoles as a function of the frequency and amplitude of the external influence was obtained. The results of the work can be useful in analysis of motion and self-organization of dislocation structure under ultrasound influence.

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http://dx.doi.org/10.1016/j.ultras.2015.08.001DOI Listing

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