Abstract
A relationship between the macroscopic localization of plastic flow and the spatiotemporal distribution of acoustic emission has been experimentally established in low-carbon steel deformed via the development of the Chernov-Lüders (CL) band followed by the parabolic strain hardening. It is shown that, as the CL band front propagates at a constant velocity in the sample, the pattern of acoustic emission is different at various stages of motion of this strain localization focus. Immobile foci of the localized flow, which appear at the stage of parabolic strain hardening, are spatially related to the inhomogeneity of strain developed during the CL band propagation.
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Original Russian Text © E.S. Nikitin, B.S. Semukhin, L.B. Zuev, 2008, published in Pis’ma v Zhurnal Tekhnicheskoĭ Fiziki, 2008, Vol. 34, No. 15, pp. 70–74.
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Nikitin, E.S., Semukhin, B.S. & Zuev, L.B. Localized plastic flow and spatiotemporal distribution of acoustic emission in steel. Tech. Phys. Lett. 34, 666–667 (2008). https://doi.org/10.1134/S1063785008080129
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DOI: https://doi.org/10.1134/S1063785008080129