Interaction of loops with Carbon atoms and dislocations in BCC Fe: An atomistic study

Dmitry Terentyev; N. Anento; A. Serra; Lorenzo Malerba

doi:10.1016/j.jnucmat.2011.08.037

Interaction of loops with Carbon atoms and dislocations in BCC Fe: An atomistic study

Dmitry Terentyev, N. Anento, A. Serra, Lorenzo Malerba

Research output › peer-review

Abstract

We apply atomistic simulations using the so called ‘metallic-covalent bonding’ interatomic model for the Fe–C system to study mobility of interstitial dislocation loops, known to form in Fe and Fe-based ferritic alloys under irradiation, and their interaction with Carbon atoms. Carbon atoms represent an effective trap for the loops with a binding energy of the order of 1 eV. The mobility of the loops is studied using the dislocation – loop drag model. From this model the activation parameters are identified and discussed.

Original language	English
Pages (from-to)	9-15
Journal	Journal of Nuclear Materials
Volume	420
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jnucmat.2011.08.037
State	Published - 16 Sep 2011

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Cite this

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title = "Interaction of loops with Carbon atoms and dislocations in BCC Fe: An atomistic study",

abstract = "We apply atomistic simulations using the so called {\textquoteleft}metallic-covalent bonding{\textquoteright} interatomic model for the Fe–C system to study mobility of interstitial dislocation loops, known to form in Fe and Fe-based ferritic alloys under irradiation, and their interaction with Carbon atoms. Carbon atoms represent an effective trap for the loops with a binding energy of the order of 1 eV. The mobility of the loops is studied using the dislocation – loop drag model. From this model the activation parameters are identified and discussed.",

keywords = "dislocation loops, radiation damage",

author = "Dmitry Terentyev and N. Anento and A. Serra and Lorenzo Malerba",

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AU - Terentyev, Dmitry

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AU - Serra, A.

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AB - We apply atomistic simulations using the so called ‘metallic-covalent bonding’ interatomic model for the Fe–C system to study mobility of interstitial dislocation loops, known to form in Fe and Fe-based ferritic alloys under irradiation, and their interaction with Carbon atoms. Carbon atoms represent an effective trap for the loops with a binding energy of the order of 1 eV. The mobility of the loops is studied using the dislocation – loop drag model. From this model the activation parameters are identified and discussed.

KW - dislocation loops

KW - radiation damage

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_117601

UR - http://knowledgecentre.sckcen.be/so2/bibref/8576

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JF - Journal of Nuclear Materials

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