Structure of nanoscale copper precipitates in neutron-irradiated Fe-Cu-C alloys

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Structure of nanoscale copper precipitates in neutron-irradiated Fe-Cu-C alloys. / Minov, Boris; Lambrecht, Marlies; Terentyev, Dmitry; Domain, Christophe; Konstantinovic, Milan; Malerba, Lorenzo (Peer reviewer).

In: Physical Review B, Vol. 85, No. 2, 06.01.2012, p. 024202-024202.

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@article{43baed01c2d7426d8635c7cbc43e1a2a,
title = "Structure of nanoscale copper precipitates in neutron-irradiated Fe-Cu-C alloys",
abstract = "The structure of copper nanoclusters/precipitates formed under neutron irradiation in Fe-0.3{\%}Cu-C alloy is studied by the internal friction and positron annihilation experiments of postirradiation annealed alloys. The appearance of a carbon-relaxation peak during the first recovery stage at about 723 K reveals the fact that complex carbon-vacancy-copper clusters have formed during the irradiation-mediated copper precipitation process. The stability of Cu-C-vacancy clusters is confirmed by ab initio calculations. The existence of a structural phase transition of copper precipitates is observed in the alloys that are annealed at temperatures between the first and second recovery stages, which indicates that the dissociation of vacancies and carbon atoms from the vacancy-copper-carbon clusters is accompanied by the crystallization of Cu precipitates.",
keywords = "Cu-precipitate, carbon, vacancy, post-irradiation annealing",
author = "Boris Minov and Marlies Lambrecht and Dmitry Terentyev and Christophe Domain and Milan Konstantinovic and Lorenzo Malerba",
note = "Score = 10",
year = "2012",
month = "1",
day = "6",
doi = "10.1103/PhysRevB.85.024202",
language = "English",
volume = "85",
pages = "024202--024202",
journal = "Physical Review B",
issn = "1098-0121",
publisher = "APS - American Physical Society",
number = "2",

}

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TY - JOUR

T1 - Structure of nanoscale copper precipitates in neutron-irradiated Fe-Cu-C alloys

AU - Minov, Boris

AU - Lambrecht, Marlies

AU - Terentyev, Dmitry

AU - Domain, Christophe

AU - Konstantinovic, Milan

A2 - Malerba, Lorenzo

N1 - Score = 10

PY - 2012/1/6

Y1 - 2012/1/6

N2 - The structure of copper nanoclusters/precipitates formed under neutron irradiation in Fe-0.3%Cu-C alloy is studied by the internal friction and positron annihilation experiments of postirradiation annealed alloys. The appearance of a carbon-relaxation peak during the first recovery stage at about 723 K reveals the fact that complex carbon-vacancy-copper clusters have formed during the irradiation-mediated copper precipitation process. The stability of Cu-C-vacancy clusters is confirmed by ab initio calculations. The existence of a structural phase transition of copper precipitates is observed in the alloys that are annealed at temperatures between the first and second recovery stages, which indicates that the dissociation of vacancies and carbon atoms from the vacancy-copper-carbon clusters is accompanied by the crystallization of Cu precipitates.

AB - The structure of copper nanoclusters/precipitates formed under neutron irradiation in Fe-0.3%Cu-C alloy is studied by the internal friction and positron annihilation experiments of postirradiation annealed alloys. The appearance of a carbon-relaxation peak during the first recovery stage at about 723 K reveals the fact that complex carbon-vacancy-copper clusters have formed during the irradiation-mediated copper precipitation process. The stability of Cu-C-vacancy clusters is confirmed by ab initio calculations. The existence of a structural phase transition of copper precipitates is observed in the alloys that are annealed at temperatures between the first and second recovery stages, which indicates that the dissociation of vacancies and carbon atoms from the vacancy-copper-carbon clusters is accompanied by the crystallization of Cu precipitates.

KW - Cu-precipitate

KW - carbon

KW - vacancy

KW - post-irradiation annealing

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_118869

UR - http://knowledgecentre.sckcen.be/so2/bibref/8795

U2 - 10.1103/PhysRevB.85.024202

DO - 10.1103/PhysRevB.85.024202

M3 - Article

VL - 85

SP - 24202

EP - 24202

JO - Physical Review B

JF - Physical Review B

SN - 1098-0121

IS - 2

ER -

ID: 99510