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This article is cited in 1 scientific paper (total in 1 paper)
Solids
Studying high-frequency acoustic emission during discontinuous creep in an aluminum–magnesium alloy
A. A. Shibkov, M. A. Zheltov, M. F. Gasanov, A. E. Zolotov, A. A. Denisov, S. S. Kochegarov Tambov State University named after G.R. Derzhavin
Abstract:
Formation of macrolocalized deformation bands under conditions of serrated creep is studied by methods of acoustic emission (AE) and high-speed video recording. It is established that the fastest stages of the deformation band formation, which are related to the emergence of a band on the surface with subsequent accelerated expansion, are accompanied by generating a burst of an AE signal in the band of $\sim$0.05–1 MHz. Hidden correlations in the complex structure of the acoustic burst were studied by methods of statistical and fractal analysis. The relation between the acoustic burst envelope and variation rate of the force response caused by the formation of an individual deformation band is established.
Keywords:
intermittent deformation, creep, acoustic emission, deformation band, fractal structure, aluminum-magnesium alloy.
Received: 21.02.2020 Revised: 17.03.2020 Accepted: 18.03.2020
Citation:
A. A. Shibkov, M. A. Zheltov, M. F. Gasanov, A. E. Zolotov, A. A. Denisov, S. S. Kochegarov, “Studying high-frequency acoustic emission during discontinuous creep in an aluminum–magnesium alloy”, Zhurnal Tekhnicheskoi Fiziki, 90:10 (2020), 1694–1701; Tech. Phys., 65:10 (2020), 1622–1629
Linking options:
https://www.mathnet.ru/eng/jtf5182 https://www.mathnet.ru/eng/jtf/v90/i10/p1694
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