Critical assessment of Cr-rich precipitates in neutron-irradiated Fe–12 at%Cr: Comparison of SANS and APT

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Critical assessment of Cr-rich precipitates in neutron-irradiated Fe–12 at%Cr: Comparison of SANS and APT. / Bergner, Frank; Pareige, Cristelle; Kuksenko, Vladimir; Malerba, Lorenzo; Pareige, Philippe; Ulbricht, Andreas; Wagner, Arne; Bonny, Giovanni (Peer reviewer).

In: Journal of Nuclear Materials, Vol. 442, No. 1-3, 10.2013, p. 463-469.

Research output: Contribution to journalArticle

Harvard

Bergner, F, Pareige, C, Kuksenko, V, Malerba, L, Pareige, P, Ulbricht, A, Wagner, A & Bonny, G 2013, 'Critical assessment of Cr-rich precipitates in neutron-irradiated Fe–12 at%Cr: Comparison of SANS and APT', Journal of Nuclear Materials, vol. 442, no. 1-3, pp. 463-469. https://doi.org/10.1016/j.jnucmat.2013.05.023

APA

Bergner, F., Pareige, C., Kuksenko, V., Malerba, L., Pareige, P., Ulbricht, A., ... Bonny, G. (2013). Critical assessment of Cr-rich precipitates in neutron-irradiated Fe–12 at%Cr: Comparison of SANS and APT. Journal of Nuclear Materials, 442(1-3), 463-469. https://doi.org/10.1016/j.jnucmat.2013.05.023

Vancouver

Bergner F, Pareige C, Kuksenko V, Malerba L, Pareige P, Ulbricht A et al. Critical assessment of Cr-rich precipitates in neutron-irradiated Fe–12 at%Cr: Comparison of SANS and APT. Journal of Nuclear Materials. 2013 Oct;442(1-3):463-469. https://doi.org/10.1016/j.jnucmat.2013.05.023

Author

Bergner, Frank ; Pareige, Cristelle ; Kuksenko, Vladimir ; Malerba, Lorenzo ; Pareige, Philippe ; Ulbricht, Andreas ; Wagner, Arne ; Bonny, Giovanni. / Critical assessment of Cr-rich precipitates in neutron-irradiated Fe–12 at%Cr: Comparison of SANS and APT. In: Journal of Nuclear Materials. 2013 ; Vol. 442, No. 1-3. pp. 463-469.

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@article{cdb8cd4adb984a4bba6341bcbe36a938,
title = "Critical assessment of Cr-rich precipitates in neutron-irradiated Fe–12 at{\%}Cr: Comparison of SANS and APT",
abstract = "Neutron irradiation at 300 C up to 0.6 dpa of an industrial purity Fe–12at{\%}Cr alloy gives rise to the formation of Cr-rich precipitates of radii of about 1 nm. Small-angle neutron scattering (SANS) and atom probe tomography (APT) applied to the same material should reveal consistent characteristics of the irradiation- induced features. They roughly do so with respect to size and volume fraction, but they do not with respect to the composition of the precipitates or clusters. The discrepancy was expressed in terms of the Porod invariant of nuclear SANS. This quantity can be determined directly by integrating the measured nuclear difference scattering cross section or, alternatively, estimated from the APT results. Both estimates were compared taking into account all potential sources of deviation including error propagation. We have found that the deviation is significant and can be progressively removed by artificially reducing the Fe fraction in the Cr-rich clusters with respect to the measured value. A well-known effect of this kind is the different evaporation fields of Cr-rich clusters and the Fe-rich matrix and resulting ion trajectory overlaps in APT. State-of-the-art consideration of this effect indicates, however, that it is not sufficient to remove the observed discrepancy.",
keywords = "Radiation-induced precipitation, Fe-Cr alloys, SANS, APT",
author = "Frank Bergner and Cristelle Pareige and Vladimir Kuksenko and Lorenzo Malerba and Philippe Pareige and Andreas Ulbricht and Arne Wagner and Giovanni Bonny",
note = "Score = 10",
year = "2013",
month = "10",
doi = "10.1016/j.jnucmat.2013.05.023",
language = "English",
volume = "442",
pages = "463--469",
journal = "Journal of Nuclear Materials",
issn = "0022-3115",
publisher = "Elsevier",
number = "1-3",

}

RIS - Download

TY - JOUR

T1 - Critical assessment of Cr-rich precipitates in neutron-irradiated Fe–12 at%Cr: Comparison of SANS and APT

AU - Bergner, Frank

AU - Pareige, Cristelle

AU - Kuksenko, Vladimir

AU - Malerba, Lorenzo

AU - Pareige, Philippe

AU - Ulbricht, Andreas

AU - Wagner, Arne

A2 - Bonny, Giovanni

N1 - Score = 10

PY - 2013/10

Y1 - 2013/10

N2 - Neutron irradiation at 300 C up to 0.6 dpa of an industrial purity Fe–12at%Cr alloy gives rise to the formation of Cr-rich precipitates of radii of about 1 nm. Small-angle neutron scattering (SANS) and atom probe tomography (APT) applied to the same material should reveal consistent characteristics of the irradiation- induced features. They roughly do so with respect to size and volume fraction, but they do not with respect to the composition of the precipitates or clusters. The discrepancy was expressed in terms of the Porod invariant of nuclear SANS. This quantity can be determined directly by integrating the measured nuclear difference scattering cross section or, alternatively, estimated from the APT results. Both estimates were compared taking into account all potential sources of deviation including error propagation. We have found that the deviation is significant and can be progressively removed by artificially reducing the Fe fraction in the Cr-rich clusters with respect to the measured value. A well-known effect of this kind is the different evaporation fields of Cr-rich clusters and the Fe-rich matrix and resulting ion trajectory overlaps in APT. State-of-the-art consideration of this effect indicates, however, that it is not sufficient to remove the observed discrepancy.

AB - Neutron irradiation at 300 C up to 0.6 dpa of an industrial purity Fe–12at%Cr alloy gives rise to the formation of Cr-rich precipitates of radii of about 1 nm. Small-angle neutron scattering (SANS) and atom probe tomography (APT) applied to the same material should reveal consistent characteristics of the irradiation- induced features. They roughly do so with respect to size and volume fraction, but they do not with respect to the composition of the precipitates or clusters. The discrepancy was expressed in terms of the Porod invariant of nuclear SANS. This quantity can be determined directly by integrating the measured nuclear difference scattering cross section or, alternatively, estimated from the APT results. Both estimates were compared taking into account all potential sources of deviation including error propagation. We have found that the deviation is significant and can be progressively removed by artificially reducing the Fe fraction in the Cr-rich clusters with respect to the measured value. A well-known effect of this kind is the different evaporation fields of Cr-rich clusters and the Fe-rich matrix and resulting ion trajectory overlaps in APT. State-of-the-art consideration of this effect indicates, however, that it is not sufficient to remove the observed discrepancy.

KW - Radiation-induced precipitation

KW - Fe-Cr alloys

KW - SANS

KW - APT

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_131791

UR - http://knowledgecentre.sckcen.be/so2/bibref/10694

U2 - 10.1016/j.jnucmat.2013.05.023

DO - 10.1016/j.jnucmat.2013.05.023

M3 - Article

VL - 442

SP - 463

EP - 469

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

IS - 1-3

ER -

ID: 243140