Detection of neutron irradiaton induced degradation of reactor steel by magnetic method

Gábor Vértesy; Antal Gasparics; Inge Uytdenhouwen; Ildikó Szenthe; Ferenc Gillemot; Rachid Chaouadi

doi:10.1088/1757-899X/903/1/012011

Detection of neutron irradiaton induced degradation of reactor steel by magnetic method

Gábor Vértesy, Antal Gasparics, Inge Uytdenhouwen, Ildikó Szenthe, Ferenc Gillemot, Rachid Chaouadi

Research output › peer-review

Abstract

A novel nondestructive method, based on step by step measurement of minor magnetic hysteresis loops was used to determine the neutron irradiation induced degradation of nuclear reactor pressure vessel steel material. This method is called Magnetic Adaptive Testing (MAT), and two types of reactor steel material were investigated: base material type 22NiMoCr37 and weld material type 18MND5. Charpy geometry samples were irradiated by neutrons at the BR2 in SCK•CEN. The neutron irradiation generated structural changes in the material. As a result of our measurement, it was shown that this degradation could be detected by MAT measurements. Charpy impact tests were also done on the investigated samples and the results of these measurement were compared with the nondestructively determined magnetic quantities. It was shown that a closely linear correlation existed between the ductileto-brittle transition temperature (DBTT) and MAT parameters.

Original language	English
Article number	012011
Number of pages	7
Journal	IOP Conference Series: Materials Science and Engineering
Volume	903
DOIs	https://doi.org/10.1088/1757-899X/903/1/012011
State	Published - 2020
Event	HMSC12 - 12th Hungarian Conference on Materials Science - Balatonkenese Duration: 13 Oct 2019 → 15 Oct 2019

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10.1088/1757-899X/903/1/012011License: Unspecified

Cite this

@article{a501ade2c98049a7a7a978b7fa3dfc60,

title = "Detection of neutron irradiaton induced degradation of reactor steel by magnetic method",

abstract = "A novel nondestructive method, based on step by step measurement of minor magnetic hysteresis loops was used to determine the neutron irradiation induced degradation of nuclear reactor pressure vessel steel material. This method is called Magnetic Adaptive Testing (MAT), and two types of reactor steel material were investigated: base material type 22NiMoCr37 and weld material type 18MND5. Charpy geometry samples were irradiated by neutrons at the BR2 in SCK•CEN. The neutron irradiation generated structural changes in the material. As a result of our measurement, it was shown that this degradation could be detected by MAT measurements. Charpy impact tests were also done on the investigated samples and the results of these measurement were compared with the nondestructively determined magnetic quantities. It was shown that a closely linear correlation existed between the ductileto-brittle transition temperature (DBTT) and MAT parameters.",

keywords = "NOMAD, RPV, NDE, Charpy impact",

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; HMSC12 - 12th Hungarian Conference on Materials Science ; Conference date: 13-10-2019 Through 15-10-2019",

year = "2020",

doi = "10.1088/1757-899X/903/1/012011",

language = "English",

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journal = "IOP Conference Series: Materials Science and Engineering",

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TY - JOUR

T1 - Detection of neutron irradiaton induced degradation of reactor steel by magnetic method

AU - Vértesy, Gábor

AU - Gasparics, Antal

AU - Uytdenhouwen, Inge

AU - Szenthe, Ildikó

AU - Gillemot, Ferenc

AU - Chaouadi, Rachid

N1 - Score=10

PY - 2020

Y1 - 2020

N2 - A novel nondestructive method, based on step by step measurement of minor magnetic hysteresis loops was used to determine the neutron irradiation induced degradation of nuclear reactor pressure vessel steel material. This method is called Magnetic Adaptive Testing (MAT), and two types of reactor steel material were investigated: base material type 22NiMoCr37 and weld material type 18MND5. Charpy geometry samples were irradiated by neutrons at the BR2 in SCK•CEN. The neutron irradiation generated structural changes in the material. As a result of our measurement, it was shown that this degradation could be detected by MAT measurements. Charpy impact tests were also done on the investigated samples and the results of these measurement were compared with the nondestructively determined magnetic quantities. It was shown that a closely linear correlation existed between the ductileto-brittle transition temperature (DBTT) and MAT parameters.

AB - A novel nondestructive method, based on step by step measurement of minor magnetic hysteresis loops was used to determine the neutron irradiation induced degradation of nuclear reactor pressure vessel steel material. This method is called Magnetic Adaptive Testing (MAT), and two types of reactor steel material were investigated: base material type 22NiMoCr37 and weld material type 18MND5. Charpy geometry samples were irradiated by neutrons at the BR2 in SCK•CEN. The neutron irradiation generated structural changes in the material. As a result of our measurement, it was shown that this degradation could be detected by MAT measurements. Charpy impact tests were also done on the investigated samples and the results of these measurement were compared with the nondestructively determined magnetic quantities. It was shown that a closely linear correlation existed between the ductileto-brittle transition temperature (DBTT) and MAT parameters.

KW - NOMAD

KW - RPV

KW - NDE

KW - Charpy impact

UR - https://ecm.sckcen.be/OTCS/llisapi.dll/open/42227906

U2 - 10.1088/1757-899X/903/1/012011

DO - 10.1088/1757-899X/903/1/012011

M3 - Article

SN - 1757-8981

VL - 903

JO - IOP Conference Series: Materials Science and Engineering

JF - IOP Conference Series: Materials Science and Engineering

M1 - 012011

T2 - HMSC12 - 12th Hungarian Conference on Materials Science

Y2 - 13 October 2019 through 15 October 2019

ER -