The effect on the mechanical response of Cr and Ni segregation on dislocation lines in bcc Fe

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The effect on the mechanical response of Cr and Ni segregation on dislocation lines in bcc Fe. / Pascuet, Maria Ines; Bonny, Giovanni; Monnet, Giath; Malerba, Lorenzo.

In: Journal of Nuclear Materials, Vol. 539, 152319, 10.2020, p. 1-9.

Research output: Contribution to journalArticle

Harvard

Pascuet, MI, Bonny, G, Monnet, G & Malerba, L 2020, 'The effect on the mechanical response of Cr and Ni segregation on dislocation lines in bcc Fe', Journal of Nuclear Materials, vol. 539, 152319, pp. 1-9. https://doi.org/10.1016/j.jnucmat.2020.152319

APA

Pascuet, M. I., Bonny, G., Monnet, G., & Malerba, L. (2020). The effect on the mechanical response of Cr and Ni segregation on dislocation lines in bcc Fe. Journal of Nuclear Materials, 539, 1-9. [152319]. https://doi.org/10.1016/j.jnucmat.2020.152319

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Pascuet, Maria Ines ; Bonny, Giovanni ; Monnet, Giath ; Malerba, Lorenzo. / The effect on the mechanical response of Cr and Ni segregation on dislocation lines in bcc Fe. In: Journal of Nuclear Materials. 2020 ; Vol. 539. pp. 1-9.

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@article{9bdcf8cb683b499da304de33ce5caf79,
title = "The effect on the mechanical response of Cr and Ni segregation on dislocation lines in bcc Fe",
abstract = "The understanding of irradiation-induced strengthening in ferritic-martensitic high-Cr steels remains an essential issue in the assessment of materials for fusion and next generation fission reactors. Recent advanced experimental studies revealed the importance of solute-rich clusters, containing Cr, Ni, Si, P and Mn, which often are created as a consequence of segregation at dislocation lines. In this work, Metropolis Monte Carlo (MMC) is applied to investigate segregation of Cr and Ni atoms around edge dislocation lines in bcc Fe. The content of Cr is varied between 7{\%} and 10{\%}, with and without 0.25{\%} of Ni. Molecular dynamics has subsequently been applied to the enriched dislocation lines to study the critical resolved shear stress at 300 K and 600 K for different concentrations of solutes in the alloy. It is found that even small amounts of Ni significantly increase the hardening of the material.",
keywords = "Iron alloys, Segregation, Dislocation mobility, Monte Carlo",
author = "Pascuet, {Maria Ines} and Giovanni Bonny and Giath Monnet and Lorenzo Malerba",
note = "Score=10",
year = "2020",
month = "10",
doi = "10.1016/j.jnucmat.2020.152319",
language = "English",
volume = "539",
pages = "1--9",
journal = "Journal of Nuclear Materials",
issn = "0022-3115",
publisher = "Elsevier",

}

RIS - Download

TY - JOUR

T1 - The effect on the mechanical response of Cr and Ni segregation on dislocation lines in bcc Fe

AU - Pascuet, Maria Ines

AU - Bonny, Giovanni

AU - Monnet, Giath

AU - Malerba, Lorenzo

N1 - Score=10

PY - 2020/10

Y1 - 2020/10

N2 - The understanding of irradiation-induced strengthening in ferritic-martensitic high-Cr steels remains an essential issue in the assessment of materials for fusion and next generation fission reactors. Recent advanced experimental studies revealed the importance of solute-rich clusters, containing Cr, Ni, Si, P and Mn, which often are created as a consequence of segregation at dislocation lines. In this work, Metropolis Monte Carlo (MMC) is applied to investigate segregation of Cr and Ni atoms around edge dislocation lines in bcc Fe. The content of Cr is varied between 7% and 10%, with and without 0.25% of Ni. Molecular dynamics has subsequently been applied to the enriched dislocation lines to study the critical resolved shear stress at 300 K and 600 K for different concentrations of solutes in the alloy. It is found that even small amounts of Ni significantly increase the hardening of the material.

AB - The understanding of irradiation-induced strengthening in ferritic-martensitic high-Cr steels remains an essential issue in the assessment of materials for fusion and next generation fission reactors. Recent advanced experimental studies revealed the importance of solute-rich clusters, containing Cr, Ni, Si, P and Mn, which often are created as a consequence of segregation at dislocation lines. In this work, Metropolis Monte Carlo (MMC) is applied to investigate segregation of Cr and Ni atoms around edge dislocation lines in bcc Fe. The content of Cr is varied between 7% and 10%, with and without 0.25% of Ni. Molecular dynamics has subsequently been applied to the enriched dislocation lines to study the critical resolved shear stress at 300 K and 600 K for different concentrations of solutes in the alloy. It is found that even small amounts of Ni significantly increase the hardening of the material.

KW - Iron alloys

KW - Segregation

KW - Dislocation mobility

KW - Monte Carlo

UR - https://ecm.sckcen.be/OTCS/llisapi.dll/overview/39202888

U2 - 10.1016/j.jnucmat.2020.152319

DO - 10.1016/j.jnucmat.2020.152319

M3 - Article

VL - 539

SP - 1

EP - 9

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

M1 - 152319

ER -

ID: 6839207