Nondestructive investigation of neutron irradiation generated structural changes of reactor steel material by magnetic hysteresis method

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Nondestructive investigation of neutron irradiation generated structural changes of reactor steel material by magnetic hysteresis method. / Vértesy, Gábor; Gasparics, Antal; Uytdenhouwen, Inge; Szenthe, Ildikó; Gillemot, Ferenc; Chaouadi, Rachid.

In: Metals, Vol. 10, 642, 15.05.2020, p. 1-11.

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@article{44f1a3a8c5bc44d381864831ccc023c0,
title = "Nondestructive investigation of neutron irradiation generated structural changes of reactor steel material by magnetic hysteresis method",
abstract = "The neutron irradiation embrittlement of four dierent types of nuclear pressure vessel materials (three base metals and one weld material) were investigated by a magnetic nondestructive testing method, magnetic adaptive testing (MAT). The method is based on the measurement of minor magnetic hysteresis loops on Charpy specimens irradiated by neutrons in the BR2 reactor. Due to the neutron irradiation, the structure of the material was modified. The Charpy impact method is suitable for destructive characterization of material embrittlement. The results of Charpy impact test measurements at SCK CEN Belgian Nuclear Research Centre were compared with the nondestructively measured magnetic parameters. A definite correlation was found between magnetic descriptors and the ductile-to-brittle transition temperature (DBTT), regardless of the type of material or irradiation condition. The results suggest that this “calibration curve“ can be used to estimate the DBTT from non-destructive measurements.",
keywords = "Steel degradation, Nuclear reactor pressure vessel, Magnetic NDT, Magnetic adaptive testing, Neutron irradiation",
author = "G{\'a}bor V{\'e}rtesy and Antal Gasparics and Inge Uytdenhouwen and Ildik{\'o} Szenthe and Ferenc Gillemot and Rachid Chaouadi",
note = "Score=10",
year = "2020",
month = "5",
day = "15",
doi = "10.3390/met10050642",
language = "English",
volume = "10",
pages = "1--11",
journal = "Metals",
issn = "2075-4701",
publisher = "MDPI",

}

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TY - JOUR

T1 - Nondestructive investigation of neutron irradiation generated structural changes of reactor steel material by magnetic hysteresis method

AU - Vértesy, Gábor

AU - Gasparics, Antal

AU - Uytdenhouwen, Inge

AU - Szenthe, Ildikó

AU - Gillemot, Ferenc

AU - Chaouadi, Rachid

N1 - Score=10

PY - 2020/5/15

Y1 - 2020/5/15

N2 - The neutron irradiation embrittlement of four dierent types of nuclear pressure vessel materials (three base metals and one weld material) were investigated by a magnetic nondestructive testing method, magnetic adaptive testing (MAT). The method is based on the measurement of minor magnetic hysteresis loops on Charpy specimens irradiated by neutrons in the BR2 reactor. Due to the neutron irradiation, the structure of the material was modified. The Charpy impact method is suitable for destructive characterization of material embrittlement. The results of Charpy impact test measurements at SCK CEN Belgian Nuclear Research Centre were compared with the nondestructively measured magnetic parameters. A definite correlation was found between magnetic descriptors and the ductile-to-brittle transition temperature (DBTT), regardless of the type of material or irradiation condition. The results suggest that this “calibration curve“ can be used to estimate the DBTT from non-destructive measurements.

AB - The neutron irradiation embrittlement of four dierent types of nuclear pressure vessel materials (three base metals and one weld material) were investigated by a magnetic nondestructive testing method, magnetic adaptive testing (MAT). The method is based on the measurement of minor magnetic hysteresis loops on Charpy specimens irradiated by neutrons in the BR2 reactor. Due to the neutron irradiation, the structure of the material was modified. The Charpy impact method is suitable for destructive characterization of material embrittlement. The results of Charpy impact test measurements at SCK CEN Belgian Nuclear Research Centre were compared with the nondestructively measured magnetic parameters. A definite correlation was found between magnetic descriptors and the ductile-to-brittle transition temperature (DBTT), regardless of the type of material or irradiation condition. The results suggest that this “calibration curve“ can be used to estimate the DBTT from non-destructive measurements.

KW - Steel degradation

KW - Nuclear reactor pressure vessel

KW - Magnetic NDT

KW - Magnetic adaptive testing

KW - Neutron irradiation

UR - https://ecm.sckcen.be/OTCS/llisapi.dll/open/39587163

U2 - 10.3390/met10050642

DO - 10.3390/met10050642

M3 - Article

VL - 10

SP - 1

EP - 11

JO - Metals

JF - Metals

SN - 2075-4701

M1 - 642

ER -

ID: 6891496