Abstract:
A correlation between the dynamics of deformation bands and the discrete acoustic emission during the intermittent creep of the AlMg6 alloy using a high-speed video recording with a time resolution to 50 μs has been studied. A trigger of a macroscopic deformation step in the creep curve is the nucleation and the broadening of the primary deformation band that generates a characteristic acoustic emission signal with duration of several milliseconds. The results confirm the mechanism of generating an acoustic emission signal related to the cooperative dislocations outcrop on the specimen external surface.
Citation:
A. A. Shibkov, M. A. Zheltov, M. F. Gasanov, A. E. Zolotov, “Mechanism of low-frequency discrete acoustic emission during intermittent creep of aluminum alloy”, Fizika Tverdogo Tela, 59:12 (2017), 2363–2369; Phys. Solid State, 59:12 (2017), 2387–2393
\Bibitem{ShiZheGas17}
\by A.~A.~Shibkov, M.~A.~Zheltov, M.~F.~Gasanov, A.~E.~Zolotov
\paper Mechanism of low-frequency discrete acoustic emission during intermittent creep of aluminum alloy
\jour Fizika Tverdogo Tela
\yr 2017
\vol 59
\issue 12
\pages 2363--2369
\mathnet{http://mi.mathnet.ru/ftt9359}
\crossref{https://doi.org/10.21883/FTT.2017.12.45232.156}
\elib{https://elibrary.ru/item.asp?id=30685638}
\transl
\jour Phys. Solid State
\yr 2017
\vol 59
\issue 12
\pages 2387--2393
\crossref{https://doi.org/10.1134/S1063783417120289}
Linking options:
https://www.mathnet.ru/eng/ftt9359
https://www.mathnet.ru/eng/ftt/v59/i12/p2363
This publication is cited in the following 5 articles:
A. A. Shibkov, A. E. Zolotov, M. F. Gasanov, A. A. Denisov, R. Yu. Koltsov, S. S. Kochegarov, “Nonlinear Dynamics of Individual Portevin–Le Chatelier Deformation Bands”, Phys. Solid State, 64:7 (2022), 393
A. A. Shibkov, M. A. Lebyodkin, T. A. Lebedkina, M. F. Gasanov, A. E. Zolotov, A. A. Denisov, “Millisecond dynamics of deformation bands during discontinuous creep in an AlMg polycrystal”, Phys. Rev. E, 102:4 (2020)
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”, Tech. Phys., 65:10 (2020), 1622–1629
M. A. Markov, Y. A. Fadin, S. V. Sychev, A. V. Krasikov, A. D. Bykova, A. N. Belyakov, A. S. Zhukov, “Oscillatory Processes under Friction in Materials and Coatings Based on Aluminum”, J. Frict. Wear, 40:2 (2019), 146
A. A. Shibkov, A. A. Denisov, M. F. Gasanov, A. E. Zolotov, M. A. Zheltov, “Nonstationary electrochemical response to the intermittent Portevin–Le Chatelier deformation in an aluminum–magnesium alloy”, Phys. Solid State, 61:2 (2019), 157–162