Mobility of edge dislocations in stressed iron crystals during irradiation

A. V. Korchuganov, K. P. Zolnikov, D. S. Kryzhevich, V. M. Chernov, S. G. Psakhie

Division for Materials Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The behavior of a/2(111){110} edge dislocations in iron in shear loading and irradiation conditions was studied by means of molecular dynamics simulation. Edge dislocations were exposed to shock waves formed by atomic displacement cascades of different energies. It was shown that starting from a certain threshold amplitude shock waves cause displacement of edge dislocations in the loaded samples. Calculations showed that the larger the shear load and the amplitude of the shock wave, the greater the displacement of dislocations in the crystallite.

Original language	English
Title of host publication	Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures
Publisher	American Institute of Physics Inc.
Volume	1683
ISBN (Electronic)	9780735413306
DOIs	https://doi.org/10.1063/1.4932785
Publication status	Published - 27 Oct 2015
Event	International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2015 - Tomsk, Russian Federation Duration: 21 Sep 2015 → 25 Sep 2015

Conference

Conference	International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2015
Country	Russian Federation
City	Tomsk
Period	21.9.15 → 25.9.15

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Keywords

atomic displacement cascades
edge dislocation mobility
molecular dynamics
shear loading
shock waves

ASJC Scopus subject areas

Physics and Astronomy(all)

Cite this

Korchuganov, A. V., Zolnikov, K. P., Kryzhevich, D. S., Chernov, V. M., & Psakhie, S. G. (2015). Mobility of edge dislocations in stressed iron crystals during irradiation. In Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures (Vol. 1683). [020095] American Institute of Physics Inc.. https://doi.org/10.1063/1.4932785

Mobility of edge dislocations in stressed iron crystals during irradiation. / Korchuganov, A. V.; Zolnikov, K. P.; Kryzhevich, D. S.; Chernov, V. M.; Psakhie, S. G.

Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures. Vol. 1683 American Institute of Physics Inc., 2015. 020095.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Korchuganov, AV, Zolnikov, KP, Kryzhevich, DS, Chernov, VM & Psakhie, SG 2015, Mobility of edge dislocations in stressed iron crystals during irradiation. in Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures. vol. 1683, 020095, American Institute of Physics Inc., International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2015, Tomsk, Russian Federation, 21.9.15. https://doi.org/10.1063/1.4932785

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AB - The behavior of a/2(111){110} edge dislocations in iron in shear loading and irradiation conditions was studied by means of molecular dynamics simulation. Edge dislocations were exposed to shock waves formed by atomic displacement cascades of different energies. It was shown that starting from a certain threshold amplitude shock waves cause displacement of edge dislocations in the loaded samples. Calculations showed that the larger the shear load and the amplitude of the shock wave, the greater the displacement of dislocations in the crystallite.

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Access to Document

10.1063/1.4932785