1. Phase Dynamics of Metal Fragmentation during Megaplastic (Severe) Deformation
- Author
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Dar`ia Serhiivna Troshchenko, Alexei V. Khomenko, and L. S. Metlov
- Subjects
010302 applied physics ,Lyapunov function ,Phase transition ,Materials science ,Internal energy ,Metals and Alloys ,Thermodynamics ,01 natural sciences ,Metal ,symbols.namesake ,Fragmentation (mass spectrometry) ,Phase dynamics ,visual_art ,0103 physical sciences ,symbols ,visual_art.visual_art_medium ,Grain boundary ,010306 general physics ,Stationary state - 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.
- Published
- 2018
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