The regularities of the formation of localized plastic flow autowaves in metals upon Lüders and Portevin–Le Chatelier deformations are considered taking into account the difference in the microscopic plastic flow mechanisms of these phenomena. Regularities in the development of these effects are studied. It has been established that the features of deformation characteristic for them are determined by the difference in the properties of the active media formed in the materials under study upon plastic deformation. The conditions for generating a switching autowave under Lüders deformation and an excitation autowave for the Portevin–Le Chatelier effect in deformable materials are considered.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 2, pp. 89–97, February, 2022.
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Zuev, L.B., Danilov, V.I., Danilova, L.V. et al. Deformable Material as a Nonlinear Active Medium. Russ Phys J 65, 294–302 (2022). https://doi.org/10.1007/s11182-022-02635-z
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DOI: https://doi.org/10.1007/s11182-022-02635-z