Wave attenuation in microcrystal copper at irradiation by a powerful electron beam

E. N. Borodin; A. E. Mayer; V. S. Krasnikov

doi:10.1016/j.cap.2011.03.062

Wave attenuation in microcrystal copper at irradiation by a powerful electron beam

E. N. Borodin^*, A. E. Mayer, V. S. Krasnikov

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The numerical study of high-rate plasticity of Cu target with different grain sizes under the action of nanosecond relativistic high-current electron beam has been carried out in the paper. The model of microcrystal material plasticity includes dislocation kinetics and dynamics as well as the stress relief in the grain boundaries of the polycrystal. This model has only two adjustable parameters. The presented results demonstrate a strong dependence of the shock wave attenuation coefficient on the grain size. At the grain size of about 70 nm, the plasticity mechanism of the dislocation glide inside grains changes to plasticity mechanism along grain boundaries.

Original language	English
Pages (from-to)	1315-1318
Number of pages	4
Journal	Current Applied Physics
Volume	11
Issue number	6
DOIs	https://doi.org/10.1016/j.cap.2011.03.062
Publication status	Published - 1 Nov 2011

Keywords

Dislocation dynamics
Electron beam methods
Grain boundaries
Nanocrystalline materials
Plasticity

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10.1016/j.cap.2011.03.062

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title = "Wave attenuation in microcrystal copper at irradiation by a powerful electron beam",

abstract = "The numerical study of high-rate plasticity of Cu target with different grain sizes under the action of nanosecond relativistic high-current electron beam has been carried out in the paper. The model of microcrystal material plasticity includes dislocation kinetics and dynamics as well as the stress relief in the grain boundaries of the polycrystal. This model has only two adjustable parameters. The presented results demonstrate a strong dependence of the shock wave attenuation coefficient on the grain size. At the grain size of about 70 nm, the plasticity mechanism of the dislocation glide inside grains changes to plasticity mechanism along grain boundaries.",

keywords = "Dislocation dynamics, Electron beam methods, Grain boundaries, Nanocrystalline materials, Plasticity",

author = "Borodin, {E. N.} and Mayer, {A. E.} and Krasnikov, {V. S.}",

year = "2011",

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doi = "10.1016/j.cap.2011.03.062",

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T1 - Wave attenuation in microcrystal copper at irradiation by a powerful electron beam

AU - Borodin, E. N.

AU - Mayer, A. E.

AU - Krasnikov, V. S.

PY - 2011/11/1

Y1 - 2011/11/1

N2 - The numerical study of high-rate plasticity of Cu target with different grain sizes under the action of nanosecond relativistic high-current electron beam has been carried out in the paper. The model of microcrystal material plasticity includes dislocation kinetics and dynamics as well as the stress relief in the grain boundaries of the polycrystal. This model has only two adjustable parameters. The presented results demonstrate a strong dependence of the shock wave attenuation coefficient on the grain size. At the grain size of about 70 nm, the plasticity mechanism of the dislocation glide inside grains changes to plasticity mechanism along grain boundaries.

AB - The numerical study of high-rate plasticity of Cu target with different grain sizes under the action of nanosecond relativistic high-current electron beam has been carried out in the paper. The model of microcrystal material plasticity includes dislocation kinetics and dynamics as well as the stress relief in the grain boundaries of the polycrystal. This model has only two adjustable parameters. The presented results demonstrate a strong dependence of the shock wave attenuation coefficient on the grain size. At the grain size of about 70 nm, the plasticity mechanism of the dislocation glide inside grains changes to plasticity mechanism along grain boundaries.

KW - Dislocation dynamics

KW - Electron beam methods

KW - Grain boundaries

KW - Nanocrystalline materials

KW - Plasticity

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DO - 10.1016/j.cap.2011.03.062

M3 - Article

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SP - 1315

EP - 1318

JO - Current Applied Physics

JF - Current Applied Physics

IS - 6

ER -

Wave attenuation in microcrystal copper at irradiation by a powerful electron beam

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Keywords

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