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arXiv · 2601.12956

Dislocation Entropy: Temperature and Density Dependence

A. G. Sukharev
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Abstract

Laser hardening of metals occurs under the influence of a shock wave, which changes the distribution and density of one-dimensional defects - dislocations. There is a relationship between the density of dislocations, the grain size and the resistance of a single crystal to shear loading. The mechanism of hardening processes continues to be intensively studied, and the dynamics of defects plays a central role here. In this paper, the dislocation entropy is analyzed from a combinatorial point of view and from the point of view of a physical oscillator with a given energy reserve. Both contributions play an important role in describing the free energy of a one-dimensional ensemble of dislocations, and are necessary to take into account the dynamic processes inside the grain of a polycrystalline structure. Keywords: Laser Shock Peening, statistical mechanics

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A. G. Sukharev. 2026-01-19. Dislocation Entropy: Temperature and Density Dependence. https://arxiv.org/abs/2601.12956

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