Abstract
Methods of X-ray diffraction analysis, optical metallography, transmission electron microscopy, and microhardness measurements have been used to perform a layer-by-layer study of the structure of a 64-mm copper ball after loading by spherically converging shock waves. It has been revealed that the high-velocity plastic deformation of copper under these loading conditions is mainly realized via slip and, in the middle and deep layers, by the formation of localized-deformation bands at grain boundaries. On the macroscopic level, shear bands are observed and, on the microlevel, a homogeneous dislocation structure, microbands, microtwins, a banded structure, and dislocation vacancy loops arise.
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Original Russian Text © A.V. Dobromyslov, N.I. Taluts, E.A. Kozlov, A.V. Petrovtsev, A.T. Sapozhnikov, D.T. Yusupov, 2015, published in Fizika Metallov i Metallovedenie, 2015, Vol. 116, No. 1, pp. 101–113.
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Dobromyslov, A.V., Taluts, N.I., Kozlov, E.A. et al. Deformation behavior of copper under conditions of loading by spherically converging shock waves: High-intensity regime of loading. Phys. Metals Metallogr. 116, 97–108 (2015). https://doi.org/10.1134/S0031918X15010044
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DOI: https://doi.org/10.1134/S0031918X15010044