Abstract
The separate and joint effect of IR laser irradiation and electric current on the Portevin–Le Chatelier effect and generation of deformation bands in aluminum–magnesium alloy AlMg6 has been investigated in situ by complex methods, including acoustic emission (AE) and high-speed video recording. The nucleation and evolution of the deformation bands initiated by pulsed laser radiation focused on the surface of deformed sample have been investigated with the time resolution up to 0.1 ms. The conditions under which a single laser “puncture” with a duration of up to ~1 ms initiates discontinuous deformation during several tens of seconds and reduces significantly (by a factor of 1.5) the critical strain of the onset of Portevin–Le Chatelier effect in AlMg6 alloy are revealed. It is established that transmission of low-density (below 40 А/mm2) direct electric current suppresses the negative influence of laser irradiation and completely stabilizes the deformation behavior of the alloy. Possible applications of the obtained results are discussed.
Similar content being viewed by others
REFERENCES
A. Portevin and F. Le Chatelier, Seances Acad. Sci. 176, 507 (1923).
K. Chihab, Y. Estrin, L. P. Kubin, and J. Vergnol, J. Scr. Metall. 21, 203 (1987).
Y. Estrin and L. P. Kubin, Continuum Models for Materials with Microstructure, Ed. by H.-B. Muhlhaus (Wiley, New-York, 1995), p. 395.
A. J. Yilmaz, Sci. Technol. Adv. Mater. 12, 1 (2011).
A. A. Shibkov, A. A. Denisov, M. A. Zheltov, et al., Mater. Sci. Eng. A 610, 338 (2014).
A. A. Shibkov, A. A. Denisov, M. A. Zheltov, et al., Phys. Solid State 57 (6), 1060 (2015).
A. A. Shibkov, A. E. Zolotov, M. A. Zheltov, et al., Crystallogr. Rep. 60 (6), 895 (2015).
A. A. Shibkov, M. F. Gasanov, A. E. Zolotov, et al., Fiz. Tverd. Tela 61 (8), 1414 (2019) Phys. Solid State 61 (8), 1354 (2019).
M. M. Krishtal and D. L. Merson, Fiz. Met. Metalloved. 81 (1), 155 (1996).
I. V. Shashkov, M. A. Lebyodkin, and T. A. Lebedkina, Acta Mater. 60, 6842 (2012).
M. A. Lebyodkin, I. V. Shashkov, T. A. Lebedkina, and V. S. Gornakov, Phys. Rev. E 95, 032910 (2017).
M. A. Lebyodkin, N. P. Kobelev, Y. Bougherira, et al., Acta Mater. 60, 3729 (2012).
A. A. Shibkov, M. A. Zheltov, M. F. Gasanov, et al., Mater. Sci. Eng. A 772, 138777 (2020).
A. A. Shibkov, M. F. Gasanov, A. E. Zolotov, et al., Crystallogr. Rep. 65 (4), 546 (2020).
Y. Brechet and Y. Estrin, Acta Metal. Mater. 43 (3), 955 (1995).
S. I. Baskakov, Radio-Engineering Circuits and Signals (Vysshaya Shkola, Moscow, 2000) [in Russian].
A. Vinogradov and A. Lasarev, Scr. Mater. 66, 745 (2012).
A. V. Lykov, Theory of Thermal Conductivity (Vysshaya Shkola, Moscow, 1967) [in Russian].
A. A. Shibkov, M. A. Zheltov, P. Yu. Kol’tsov, et al., Izv. Ross. Akad. Nauk, Ser. Fiz. 70 (9), 1372 (2006).
J. F. Ready, Effects of High-Power Laser Radiation (Academic, New York, 1971).
H. Parkus, Instationare Warmespannungen (Springer, Wien, 1959).
Yu. I. Golovin, A. V. Gorbunov, and A. A. Shibkov, Fiz. Tverd. Tela 30 (7), 1931 (1988).
M. Lebyodkin, L. Dunin-Barkowskii, Y. Brechet, et al., Acta Mater. 48, 2529 (2000).
K. Chen, P. Bak, and S. P. Obukhov, Phys. Rev. A 43 (2), 625 (1991).
H. Kanamori and E. Brodsky, Rep. Prog. Phys. 67, 1429 (2004).
Funding
The high-speed optical and acoustic studies were supported in part by the Russian Science Foundation (grant no. 18-19-00304), and the study of the influence of electric current on the dynamics of deformation bands initiated by laser irradiation was supported by the Russian Foundation for Basic Research (grant no. 19-38-90145 “Aspiranty”).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated by Yu. Sin’kov
Rights and permissions
About this article
Cite this article
Shibkov, A.A., Zheltov, M.A., Gasanov, M.F. et al. Initiation and Suppression of the Portevin–Le Chatelier Effect in Aluminum Alloy under IR Laser Irradiation and Electric Current. Crystallogr. Rep. 65, 836–843 (2020). https://doi.org/10.1134/S1063774520060310
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063774520060310