Generalized susceptibility and small oscillations of edge dislocation in the Peierls relief when interacting with point defects

Viktor Dezhin

doi:10.1117/12.3016567

19 January 2024 Generalized susceptibility and small oscillations of edge dislocation in the Peierls relief when interacting with point defects

Viktor Dezhin

Author Affiliations +

Proceedings Volume 12986, Third International Scientific and Practical Symposium on Materials Science and Technology (MST-III 2023); 129860D (2024) https://doi.org/10.1117/12.3016567
Event: Third International Scientific and Practical Symposium on Materials Science and Technology (MST-III 2023), 2023, Dushanbe, Tajikistan

Abstract

In the present work, small oscillations of a rectilinear edge dislocation in a nondissipative crystal are studied. An expression is written for inverse generalized susceptibility of edge dislocation, which takes into account influence of the Peierls relief and elastic interaction with a chain of point defects. It is shown that at, a rectilinear edge dislocation can have only quasi-local oscillations. Expression is found for internal friction due to emission of elastic waves by a oscillating edge dislocation. As an example, oscillations of edge dislocation in aluminum crystal with point defects of "substitution atom" type are considered. Frequencies of quasi-local oscillations of the edge dislocation are calculated and plots of frequency dependence for internal friction are plotted.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Viktor Dezhin "Generalized susceptibility and small oscillations of edge dislocation in the Peierls relief when interacting with point defects", Proc. SPIE 12986, Third International Scientific and Practical Symposium on Materials Science and Technology (MST-III 2023), 129860D (19 January 2024); https://doi.org/10.1117/12.3016567

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