Assessment of hardening due to dislocation loops in bcc iron: Overview and analysis of atomistic simulations for edge dislocations

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Assessment of hardening due to dislocation loops in bcc iron: Overview and analysis of atomistic simulations for edge dislocations. / Bonny, Giovanni; Terentyev, Dmitry; Elena, Jorge; Zinovev, Aleksandr; Minov, Boris; Zhurkin, Evgeny.

In: Journal of Nuclear Materials, Vol. 473, 02.03.2016, p. 283-289.

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@article{631f2bd5a351453e83fc53f825fbc589,
title = "Assessment of hardening due to dislocation loops in bcc iron: Overview and analysis of atomistic simulations for edge dislocations",
abstract = "Upon irradiation, iron based steels used for nuclear applications contain dislocation loops of both ⟨100⟩ and ½⟨111⟩ type. Both types of loops are known to contribute to the radiation hardening and embrittlement of steels. In the literature many molecular dynamics works studying the interaction of dislocations with dislocation loops are available. Recently, based on such studies, a thermo-mechanical model to threat the dislocation e dislocation loop (DL) interaction within a discrete dislocation dynamics framework was developed for ½⟨111⟩ loops. In this work, we make a literature review of the dislocatione DL interaction in bcc iron. We also perform molecular dynamics simulations to derive the stressenergy function for ⟨100⟩ loops. As a result we deliver the function of the activation energy versus activation stress for ⟨100⟩ loops that can be applied in a discrete dislocation dynamics framework.",
keywords = "dislocation, dislocation loop, molecular dynamics",
author = "Giovanni Bonny and Dmitry Terentyev and Jorge Elena and Aleksandr Zinovev and Boris Minov and Evgeny Zhurkin",
note = "Score=10",
year = "2016",
month = "3",
day = "2",
doi = "10.1016/j.jnucmat.2016.02.031",
language = "English",
volume = "473",
pages = "283--289",
journal = "Journal of Nuclear Materials",
issn = "0022-3115",
publisher = "Elsevier",

}

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TY - JOUR

T1 - Assessment of hardening due to dislocation loops in bcc iron: Overview and analysis of atomistic simulations for edge dislocations

AU - Bonny, Giovanni

AU - Terentyev, Dmitry

AU - Elena, Jorge

AU - Zinovev, Aleksandr

AU - Minov, Boris

AU - Zhurkin, Evgeny

N1 - Score=10

PY - 2016/3/2

Y1 - 2016/3/2

N2 - Upon irradiation, iron based steels used for nuclear applications contain dislocation loops of both ⟨100⟩ and ½⟨111⟩ type. Both types of loops are known to contribute to the radiation hardening and embrittlement of steels. In the literature many molecular dynamics works studying the interaction of dislocations with dislocation loops are available. Recently, based on such studies, a thermo-mechanical model to threat the dislocation e dislocation loop (DL) interaction within a discrete dislocation dynamics framework was developed for ½⟨111⟩ loops. In this work, we make a literature review of the dislocatione DL interaction in bcc iron. We also perform molecular dynamics simulations to derive the stressenergy function for ⟨100⟩ loops. As a result we deliver the function of the activation energy versus activation stress for ⟨100⟩ loops that can be applied in a discrete dislocation dynamics framework.

AB - Upon irradiation, iron based steels used for nuclear applications contain dislocation loops of both ⟨100⟩ and ½⟨111⟩ type. Both types of loops are known to contribute to the radiation hardening and embrittlement of steels. In the literature many molecular dynamics works studying the interaction of dislocations with dislocation loops are available. Recently, based on such studies, a thermo-mechanical model to threat the dislocation e dislocation loop (DL) interaction within a discrete dislocation dynamics framework was developed for ½⟨111⟩ loops. In this work, we make a literature review of the dislocatione DL interaction in bcc iron. We also perform molecular dynamics simulations to derive the stressenergy function for ⟨100⟩ loops. As a result we deliver the function of the activation energy versus activation stress for ⟨100⟩ loops that can be applied in a discrete dislocation dynamics framework.

KW - dislocation

KW - dislocation loop

KW - molecular dynamics

UR - http://ecm.sckcen.be/OTCS/llisapi.dll?func=ll&objId=20379993&objaction=overview&tab=1

U2 - 10.1016/j.jnucmat.2016.02.031

DO - 10.1016/j.jnucmat.2016.02.031

M3 - Article

VL - 473

SP - 283

EP - 289

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

ER -

ID: 1468881