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arXiv · 2111.05208

Thermodynamic theory of dislocation/grain boundary interaction

Yinguang Piao·Khanh Chau Le
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Abstract

The thermodynamic theory of dislocation/grain boundary interaction, including dislocation pile-up against, absorption by, and transfer through the grain boundary, is developed for nonuniform plastic deformations in polycrystals. The case study is carried out on the boundary conditions affecting work hardening of a bicrystal subjected to plane constrained shear for three types of grain boundaries: (i) impermeable hard grain boundary, (ii) grain boundary that allows dislocation transfer without absorption, (iii) grain boundary that absorbs dislocations and allows them to pass later.

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Yinguang Piao, Khanh Chau Le. 2021-11-09. Thermodynamic theory of dislocation/grain boundary interaction. https://doi.org/10.1007/s00161-022-01088-6

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