Simulation of defect evolution in electron-irradiated dilute FeCr alloys

C.J. Ortiz; Dmitry Terentyev; P. Olsson; R. Vila; Lorenzo Malerba; Giovanni Bonny

doi:10.1016/j.jnucmat.2010.12.188

Simulation of defect evolution in electron-irradiated dilute FeCr alloys

C.J. Ortiz, Dmitry Terentyev, P. Olsson, R. Vila, Lorenzo Malerba, Giovanni Bonny

Research output › peer-review

Abstract

A rate theory model based on ab initio data was used to predict defect evolution in electron-irradiated dilute FeCr alloys during isochronal annealing. A good correlation was found between the prediction of the model and existing isochronal resistivity recovery measurements. In agreement with experimental results, our model predicts a shift of stage IE towards lower temperature with increasing Cr concentration. According to our model, stage II is found to be not only due to the recombination of I2 clusters with vacancies but also due to the annihilation of ICr and I2Cr complexes at vacancies.

Original language	English
Pages (from-to)	1078-1081
Journal	Journal of Nuclear Materials
Volume	417
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jnucmat.2010.12.188
State	Published - 1 Jan 2011

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Cite this

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title = "Simulation of defect evolution in electron-irradiated dilute FeCr alloys",

abstract = "A rate theory model based on ab initio data was used to predict defect evolution in electron-irradiated dilute FeCr alloys during isochronal annealing. A good correlation was found between the prediction of the model and existing isochronal resistivity recovery measurements. In agreement with experimental results, our model predicts a shift of stage IE towards lower temperature with increasing Cr concentration. According to our model, stage II is found to be not only due to the recombination of I2 clusters with vacancies but also due to the annihilation of ICr and I2Cr complexes at vacancies.",

keywords = "point defects, Fe-Cr alloys",

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AU - Ortiz, C.J.

AU - Terentyev, Dmitry

AU - Olsson, P.

AU - Vila, R.

AU - Malerba, Lorenzo

A2 - Bonny, Giovanni

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AB - A rate theory model based on ab initio data was used to predict defect evolution in electron-irradiated dilute FeCr alloys during isochronal annealing. A good correlation was found between the prediction of the model and existing isochronal resistivity recovery measurements. In agreement with experimental results, our model predicts a shift of stage IE towards lower temperature with increasing Cr concentration. According to our model, stage II is found to be not only due to the recombination of I2 clusters with vacancies but also due to the annihilation of ICr and I2Cr complexes at vacancies.

KW - point defects

KW - Fe-Cr alloys

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_117607

UR - http://knowledgecentre.sckcen.be/so2/bibref/8580

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JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

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