Abstract
Conditions have been considered for the formation of autowaves of localized plastic flow in the deformed metals upon the propagation of Lüders bands in the case of the Portevin–Le Chatelier effect, and upon the formation of a neck with taking into account the differences in the microscopic mechanisms of plastic deformation in the case of these phenomena. The laws that govern the development of the localized plastic flow of metals and the role of these laws in the development of the above effects have been investigated. It has been established that the main features of the deformation characteristic of these phenomena are determined by the differences in the properties of the active media that are formed in the material upon plastic deformation. The mechanisms of the generation of different autowave modes of the localized plastic flow upon the Lüders deformation, Portevin–Le Chatelier effect, and the formation of a neck in active media of different nature during deformation have been considered.
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Original Russian Text © L.B. Zuev, 2017, published in Fizika Metallov i Metallovedenie, 2017, Vol. 118, No. 8, pp. 851–860.
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Zuev, L.B. Autowave processes of the localization of plastic flow in active media subjected to deformation. Phys. Metals Metallogr. 118, 810–819 (2017). https://doi.org/10.1134/S0031918X17060114
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DOI: https://doi.org/10.1134/S0031918X17060114