Dynamical Effects of Driven Dislocation Glide through Local Pinnings

Masato Hiratani; Vasily V. Bulatov

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Dynamical Effects of Driven Dislocation Glide through Local Pinnings

Masato Hiratani·Vasily V. Bulatov

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Abstract

We present effects of dislocation inertia on the driven dislocation glide through local immobile pinnings using a stochastic computational model. The global dislocation velocity at a higher stress range is found noticeably dependent on the dislocation inertia, and the temperature sensitivity is observed to be strongly non-Arrhenius. The statistical analysis indicates that the correlation of the local dislocation kinetic energy is extended at a lower temperature, which results in the enhanced depinning rate by the inertia effect.

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Masato Hiratani, Vasily V. Bulatov. 2005-09-20. Dynamical Effects of Driven Dislocation Glide through Local Pinnings. https://arxiv.org/abs/cond-mat/0509527

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