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arXiv · 1505.06704

Statistical Thermodynamics of Strain Hardening in Polycrystalline Solids

J. S. Langer
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Abstract

This paper starts with a systematic rederivation of the statistical thermodynamic equations of motion for dislocation-mediated plasticity proposed in 2010 by Langer, Bouchbinder and Lookman. It then uses that theory to explain the anomalous rate-hardening behavior reported in 1988 by Follansbee and Kocks, and to explore the relation between hardening rate and grain size reported in 1995 by Meyers et al. A central theme is the need for physics-based, nonequilibrium analyses in developing predictive theories of the strength of polycrystalline materials.

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J. S. Langer. 2015-06-26. Statistical Thermodynamics of Strain Hardening in Polycrystalline Solids. https://doi.org/10.1103/physreve.92.032125

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