Non-Equilibrium Evolution Thermodynamics Theory

Details Non-Equilibrium Evolution Thermodynamics Theory Non-Equilibrium Evolution Thermodynamics Theory

2011-11-28

arxiv.org/abs/1111.6531v1

Physics

Condensed Matter

Statistical Mechanics

7 pages, 1 figure

Scientific paper

Alternative approach for description of the non-equilibrium phenomena arising in solids at a severe external loading is analyzed. The approach is based on the new form of kinetic equations in terms of the internal and modified free energy. It is illustrated by a model example of a solid with vacancies, for which there is a complete statistical ground. The approach is applied to the description of important practical problem - the formation of fine-grained structure of metals during their treatment by methods of severe plastic deformation. In the framework of two-level two-mode effective internal energy potential model the strengthening curves unified for the whole of deformation range and containing the Hall-Petch and linear strengthening sections are calculated.

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