Influence of Glide Dislocation Motion on Self-Diffusion in b.c.c. Fe. A Molecular Dynamics Study

Issues » Volume 42, Issue 1

O. V. Filatov$^{1,2}$, O. M. Soldatenko$^{2}$

$^{1}$G. V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine
$^{2}$National Technical University of Ukraine ‘Igor Sikorsky Kyiv Polytechnic Institute’, 37 Peremohy Ave., UA-03056 Kyiv, Ukraine

Received: 25.09.2019. Download: PDF

The interaction of glide dislocations with own interstitial atoms in $\alpha$-Fe is studied. As a method of investigation the molecular dynamics simulation is used. The modelled sample is deformed with a rate close to the deformation rates under pulsed laser treatment. Mass transfer parameter for b.c.c. Fe under laser pulse irradiation is calculated. As established, the core of moving dislocation is a trap for interstitial atom. The influence of temperature and deformation rate on mass-transfer coefficient is studied.

Key words: dislocation motion, interstitial atom, pulsed loading, molecular dynamics, mass transfer.

URL: http://mfint.imp.kiev.ua/en/abstract/v42/i01/0001.html

DOI: https://doi.org/10.15407/mfint.42.01.0001

PACS: 61.43.Bn, 61.72.Bb, 61.72.jj, 61.72.Lk, 61.80.Ba, 83.10.Rs

Citation: O. V. Filatov and O. M. Soldatenko, Influence of Glide Dislocation Motion on Self-Diffusion in b.c.c. Fe. A Molecular Dynamics Study, Metallofiz. Noveishie Tekhnol., 42, No. 1: 1—9 (2020)

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