The effect of Cr concentration on radiation damage in Fe–Cr alloys

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The effect of Cr concentration on radiation damage in Fe–Cr alloys. / Vörtler, Katherina; Björkas, Carolina; Terentyev, Dmitry; Malerba, Lorenzo; Nordlund, Kai; Bonny, Giovanni (Peer reviewer).

In: Journal of Nuclear Materials, Vol. 382, No. 1, 10.2008, p. 24-30.

Research output: Contribution to journalArticle

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Vörtler, K, Björkas, C, Terentyev, D, Malerba, L, Nordlund, K & Bonny, G 2008, 'The effect of Cr concentration on radiation damage in Fe–Cr alloys', Journal of Nuclear Materials, vol. 382, no. 1, pp. 24-30. https://doi.org/10.1016/j.jnucmat.2008.09.007

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Vörtler, Katherina ; Björkas, Carolina ; Terentyev, Dmitry ; Malerba, Lorenzo ; Nordlund, Kai ; Bonny, Giovanni. / The effect of Cr concentration on radiation damage in Fe–Cr alloys. In: Journal of Nuclear Materials. 2008 ; Vol. 382, No. 1. pp. 24-30.

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@article{645f04c8f5ec476ea48d1013fa9030b6,
title = "The effect of Cr concentration on radiation damage in Fe–Cr alloys",
abstract = "Displacement cascades in Fe–Cr alloys were studied using molecular dynamics computer simulations. We considered random Fe–5Cr and Fe–15Cr alloys, as well as Fe–10Cr alloys with and without Cr-rich precipitates. The cascades were induced by recoils with energies up to 20 keV. We found that the average number of surviving Frenkel pairs and the fraction of vacancies and self-interstitials in clusters was approximately the same in pure Fe and random Fe–Cr alloys (regardless of Cr concentration). A noticeable effect of the presence of Cr in the Fe matrix was only observed in the enrichment of self-interstitials by Cr in Fe–5Cr. In simulations with the Cr-rich precipitate, enhanced cascade splitting and segregation of self-interstitial defects created inside the precipitates towards the precipitate–matrix interface region was observed. The number of Frenkel pairs and their clustered fraction was not affected by the presence of the precipitate.",
keywords = "Displacement cascades, FeCr alloys, molecular dynamics simulations",
author = "Katherina V{\"o}rtler and Carolina Bj{\"o}rkas and Dmitry Terentyev and Lorenzo Malerba and Kai Nordlund and Giovanni Bonny",
note = "Score = 10",
year = "2008",
month = "10",
doi = "10.1016/j.jnucmat.2008.09.007",
language = "English",
volume = "382",
pages = "24--30",
journal = "Journal of Nuclear Materials",
issn = "0022-3115",
publisher = "Elsevier",
number = "1",

}

RIS - Download

TY - JOUR

T1 - The effect of Cr concentration on radiation damage in Fe–Cr alloys

AU - Vörtler, Katherina

AU - Björkas, Carolina

AU - Terentyev, Dmitry

AU - Malerba, Lorenzo

AU - Nordlund, Kai

A2 - Bonny, Giovanni

N1 - Score = 10

PY - 2008/10

Y1 - 2008/10

N2 - Displacement cascades in Fe–Cr alloys were studied using molecular dynamics computer simulations. We considered random Fe–5Cr and Fe–15Cr alloys, as well as Fe–10Cr alloys with and without Cr-rich precipitates. The cascades were induced by recoils with energies up to 20 keV. We found that the average number of surviving Frenkel pairs and the fraction of vacancies and self-interstitials in clusters was approximately the same in pure Fe and random Fe–Cr alloys (regardless of Cr concentration). A noticeable effect of the presence of Cr in the Fe matrix was only observed in the enrichment of self-interstitials by Cr in Fe–5Cr. In simulations with the Cr-rich precipitate, enhanced cascade splitting and segregation of self-interstitial defects created inside the precipitates towards the precipitate–matrix interface region was observed. The number of Frenkel pairs and their clustered fraction was not affected by the presence of the precipitate.

AB - Displacement cascades in Fe–Cr alloys were studied using molecular dynamics computer simulations. We considered random Fe–5Cr and Fe–15Cr alloys, as well as Fe–10Cr alloys with and without Cr-rich precipitates. The cascades were induced by recoils with energies up to 20 keV. We found that the average number of surviving Frenkel pairs and the fraction of vacancies and self-interstitials in clusters was approximately the same in pure Fe and random Fe–Cr alloys (regardless of Cr concentration). A noticeable effect of the presence of Cr in the Fe matrix was only observed in the enrichment of self-interstitials by Cr in Fe–5Cr. In simulations with the Cr-rich precipitate, enhanced cascade splitting and segregation of self-interstitial defects created inside the precipitates towards the precipitate–matrix interface region was observed. The number of Frenkel pairs and their clustered fraction was not affected by the presence of the precipitate.

KW - Displacement cascades

KW - FeCr alloys

KW - molecular dynamics simulations

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_92390

UR - http://knowledgecentre.sckcen.be/so2/bibref/5284

U2 - 10.1016/j.jnucmat.2008.09.007

DO - 10.1016/j.jnucmat.2008.09.007

M3 - Article

VL - 382

SP - 24

EP - 30

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

IS - 1

ER -

ID: 199362