Confinement of motion of interstitial clusters and dislocation loops in BCC Fe-Cr alloys

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Confinement of motion of interstitial clusters and dislocation loops in BCC Fe-Cr alloys. / Terentyev, Dmitry; Klimenkov, Michail; Malerba, Lorenzo; Bonny, Giovanni (Peer reviewer).

In: Journal of Nuclear Materials, Vol. 393, No. 1, 01.08.2009, p. 30-35.

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Terentyev, Dmitry ; Klimenkov, Michail ; Malerba, Lorenzo ; Bonny, Giovanni. / Confinement of motion of interstitial clusters and dislocation loops in BCC Fe-Cr alloys. In: Journal of Nuclear Materials. 2009 ; Vol. 393, No. 1. pp. 30-35.

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@article{ad0e84a7d7a441c3be68ccae8121a531,
title = "Confinement of motion of interstitial clusters and dislocation loops in BCC Fe-Cr alloys",
abstract = "This work is devoted to the study of the effect of Cr solutes on the mobility of self interstitial atom (SIA) clusters and small interstitial dislocation loops (of size up to a few nanometers) in concentrated Fe-Cr alloys. Atomistic simulations have been performed to characterize the variation of the free energy of interstitial loops in the Fe-15Cr alloy using the experimentally determined profile of Cr distribution along the path of a loop. It is shown that the presence of randomly distributed Cr in Fe leads to the creation of local trapping configurations for small SIA clusters. The strength (trapping energy) and density of these configurations depend on the Cr content. On the contrary, large SIA clusters (which can be described as 1/2 <1 1 1 > dislocation loops) are strongly affected by the presence Cr-Cr pairs and larger Cr clusters, which act as barriers to their motion.",
keywords = "Displacement cascades, point defects, iron, resistivity, migration, recovery",
author = "Dmitry Terentyev and Michail Klimenkov and Lorenzo Malerba and Giovanni Bonny",
note = "SCORE=10",
year = "2009",
month = "8",
day = "1",
doi = "10.1016/j.jnucmat.2009.05.002",
language = "English",
volume = "393",
pages = "30--35",
journal = "Journal of Nuclear Materials",
issn = "0022-3115",
publisher = "Elsevier",
number = "1",

}

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TY - JOUR

T1 - Confinement of motion of interstitial clusters and dislocation loops in BCC Fe-Cr alloys

AU - Terentyev, Dmitry

AU - Klimenkov, Michail

AU - Malerba, Lorenzo

A2 - Bonny, Giovanni

N1 - SCORE=10

PY - 2009/8/1

Y1 - 2009/8/1

N2 - This work is devoted to the study of the effect of Cr solutes on the mobility of self interstitial atom (SIA) clusters and small interstitial dislocation loops (of size up to a few nanometers) in concentrated Fe-Cr alloys. Atomistic simulations have been performed to characterize the variation of the free energy of interstitial loops in the Fe-15Cr alloy using the experimentally determined profile of Cr distribution along the path of a loop. It is shown that the presence of randomly distributed Cr in Fe leads to the creation of local trapping configurations for small SIA clusters. The strength (trapping energy) and density of these configurations depend on the Cr content. On the contrary, large SIA clusters (which can be described as 1/2 <1 1 1 > dislocation loops) are strongly affected by the presence Cr-Cr pairs and larger Cr clusters, which act as barriers to their motion.

AB - This work is devoted to the study of the effect of Cr solutes on the mobility of self interstitial atom (SIA) clusters and small interstitial dislocation loops (of size up to a few nanometers) in concentrated Fe-Cr alloys. Atomistic simulations have been performed to characterize the variation of the free energy of interstitial loops in the Fe-15Cr alloy using the experimentally determined profile of Cr distribution along the path of a loop. It is shown that the presence of randomly distributed Cr in Fe leads to the creation of local trapping configurations for small SIA clusters. The strength (trapping energy) and density of these configurations depend on the Cr content. On the contrary, large SIA clusters (which can be described as 1/2 <1 1 1 > dislocation loops) are strongly affected by the presence Cr-Cr pairs and larger Cr clusters, which act as barriers to their motion.

KW - Displacement cascades

KW - point defects

KW - iron

KW - resistivity

KW - migration

KW - recovery

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_100840

UR - http://knowledgecentre.sckcen.be/so2/bibref/6185

U2 - 10.1016/j.jnucmat.2009.05.002

DO - 10.1016/j.jnucmat.2009.05.002

M3 - Article

VL - 393

SP - 30

EP - 35

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

IS - 1

ER -

ID: 326951