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Acoustic emission during heating of strained aluminum

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Abstract

The phenomenon of acoustic emission during annealing of preliminarily strained polycrystalline aluminum was observed. Although processes accompanying the metal annealing belong to thermoactivated (microscopic motion, diffusion) phenomena, the acoustic oscillations are generated in the events of spontaneous macroscopic motions of grain boundaries. This is confirmed by the results of analyzing the effective activation energy and the investigation of the grain boundary structure.

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References

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Authors and Affiliations

  1. Altai State University, Barnaul, Russia

    V. A. Plotnikov

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  1. V. A. Plotnikov
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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 27, No. 15, 2001, pp. 27–32.

Original Russian Text Copyright © 2001 by Plotnikov.

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Plotnikov, V.A. Acoustic emission during heating of strained aluminum. Tech. Phys. Lett. 27, 632–634 (2001). https://doi.org/10.1134/1.1398951

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  • DOI: https://doi.org/10.1134/1.1398951

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