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Article

Interpretation of Nondestructive Magnetic Measurements on Irradiated Reactor Steel Material

1
Centre for Energy Research, 1121 Budapest, Hungary
2
SCK CEN Belgian Nuclear Research Centre, 2400 Mol, Belgium
*
Author to whom correspondence should be addressed.
Academic Editors: Stefano Invernizzi and Giuseppe Lacidogna
Appl. Sci. 2021, 11(8), 3650; https://doi.org/10.3390/app11083650
Received: 8 March 2021 / Revised: 8 April 2021 / Accepted: 15 April 2021 / Published: 18 April 2021
(This article belongs to the Special Issue Nondestructive Testing (NDT): Volume II)
Neutron irradiation-generated embrittlement of nuclear pressure vessel steel was inspected by a nondestructive magnetic method, called magnetic adaptive testing (MAT). This method is based on systematic measurement and evaluation of minor magnetic hysteresis loops. Result of MAT measurement was compared with the result of the traditional Charpy measurement. Good correlation was found between these parameters. One of the main findings of the present work is that the considerable part of scatter of points obtained by magnetic measurement can be attributed to local material inhomogeneity. Another important conclusion is that the embrittlement highly depends on the initial local material conditions, i.e., the initial microstructure, which are very different even within the same block of reactor steel material. By taking this into account, the magnetic descriptors obtain more precise determination of the local embrittlement than the traditionally used destructive mechanical parameters from Charpy data. View Full-Text
Keywords: neutron irradiation embrittlement; reactor pressure vessel; magnetic nondestructive evaluation; magnetic adaptive testing; ductile to brittle transition temperature neutron irradiation embrittlement; reactor pressure vessel; magnetic nondestructive evaluation; magnetic adaptive testing; ductile to brittle transition temperature
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MDPI and ACS Style

Vértesy, G.; Gasparics, A.; Szenthe, I.; Uytdenhouwen, I. Interpretation of Nondestructive Magnetic Measurements on Irradiated Reactor Steel Material. Appl. Sci. 2021, 11, 3650. https://doi.org/10.3390/app11083650

AMA Style

Vértesy G, Gasparics A, Szenthe I, Uytdenhouwen I. Interpretation of Nondestructive Magnetic Measurements on Irradiated Reactor Steel Material. Applied Sciences. 2021; 11(8):3650. https://doi.org/10.3390/app11083650

Chicago/Turabian Style

Vértesy, Gábor, Antal Gasparics, Ildikó Szenthe, and Inge Uytdenhouwen. 2021. "Interpretation of Nondestructive Magnetic Measurements on Irradiated Reactor Steel Material" Applied Sciences 11, no. 8: 3650. https://doi.org/10.3390/app11083650

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