Email this article Phase Dynamics of Metal Fragmentation during Megaplastic (Severe) Deformation
- Authors: Khomenko A.V.1, Troshchenko D.S.1, Metlov L.S.2
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Affiliations:
- Sumy State University
- Donetsk Institute for Physics and Engineering
- Issue: Vol 2018, No 4 (2018)
- Pages: 295-302
- Section: Physical Foundations of Strength and Plasticity
- URL: https://journal-vniispk.ru/0036-0295/article/view/172449
- DOI: https://doi.org/10.1134/S0036029518040079
- ID: 172449
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Abstract
The fragmentation of metals during megaplastic (severe) deformation is described in terms of a two-defect model. The process kinetics has been studied qualitatively. A general expression for the Lyapunov indices, which determine the stability of limiting (stationary) structures, is derived. Critical conditions for controlling parameters are found, and the diagrams that determine the stability of stationary states are constructed.
About the authors
A. V. Khomenko
Sumy State University
Author for correspondence.
Email: o.khomenko@mss.sumdu.edu.ua
Ukraine, Sumy, 40007
D. S. Troshchenko
Sumy State University
Email: o.khomenko@mss.sumdu.edu.ua
Ukraine, Sumy, 40007
L. S. Metlov
Donetsk Institute for Physics and Engineering
Email: o.khomenko@mss.sumdu.edu.ua
Ukraine, Donetsk, 83114
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