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Analysis of Magnetic Nondestructive Measurement Methods for Determination of the Degradation of Reactor Pressure Vessel Steel

Nondestructive magnetic measurement methods can be successfully applied to determine the embrittlement of nuclear pressure vessel steel caused by neutron irradiation. It was found in previous works that reasonable correlation could be obtained between the nondestructively measured magnetic parameter...

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Autores principales: Vértesy, Gábor, Gasparics, Antal, Szenthe, Ildikó, Rabung, Madalina, Kopp, Melanie, Griffin, James M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8470896/
https://www.ncbi.nlm.nih.gov/pubmed/34576479
http://dx.doi.org/10.3390/ma14185256
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author Vértesy, Gábor
Gasparics, Antal
Szenthe, Ildikó
Rabung, Madalina
Kopp, Melanie
Griffin, James M.
author_facet Vértesy, Gábor
Gasparics, Antal
Szenthe, Ildikó
Rabung, Madalina
Kopp, Melanie
Griffin, James M.
author_sort Vértesy, Gábor
collection PubMed
description Nondestructive magnetic measurement methods can be successfully applied to determine the embrittlement of nuclear pressure vessel steel caused by neutron irradiation. It was found in previous works that reasonable correlation could be obtained between the nondestructively measured magnetic parameters and destructively determined ductile-to-brittle transition temperature. However, a large scatter of the measurement points was detected even in the cases of the non-irradiated reference samples. The reason for their scattering was attributed to the local inhomogeneity of material. This conclusion is verified in the present work by applying three different magnetic methods on two sets of Charpy samples made of two different reactor steel materials. It was found that by an optimal magnetic pre-selection of samples, a good, linear correlation can be found between magnetic parameters as well as the ductile-to-brittle transition temperature with low scattering of points. This result shows that neutron irradiation embrittlement depends very much on the local material properties.
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spelling pubmed-84708962021-09-27 Analysis of Magnetic Nondestructive Measurement Methods for Determination of the Degradation of Reactor Pressure Vessel Steel Vértesy, Gábor Gasparics, Antal Szenthe, Ildikó Rabung, Madalina Kopp, Melanie Griffin, James M. Materials (Basel) Article Nondestructive magnetic measurement methods can be successfully applied to determine the embrittlement of nuclear pressure vessel steel caused by neutron irradiation. It was found in previous works that reasonable correlation could be obtained between the nondestructively measured magnetic parameters and destructively determined ductile-to-brittle transition temperature. However, a large scatter of the measurement points was detected even in the cases of the non-irradiated reference samples. The reason for their scattering was attributed to the local inhomogeneity of material. This conclusion is verified in the present work by applying three different magnetic methods on two sets of Charpy samples made of two different reactor steel materials. It was found that by an optimal magnetic pre-selection of samples, a good, linear correlation can be found between magnetic parameters as well as the ductile-to-brittle transition temperature with low scattering of points. This result shows that neutron irradiation embrittlement depends very much on the local material properties. MDPI 2021-09-13 /pmc/articles/PMC8470896/ /pubmed/34576479 http://dx.doi.org/10.3390/ma14185256 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Vértesy, Gábor
Gasparics, Antal
Szenthe, Ildikó
Rabung, Madalina
Kopp, Melanie
Griffin, James M.
Analysis of Magnetic Nondestructive Measurement Methods for Determination of the Degradation of Reactor Pressure Vessel Steel
title Analysis of Magnetic Nondestructive Measurement Methods for Determination of the Degradation of Reactor Pressure Vessel Steel
title_full Analysis of Magnetic Nondestructive Measurement Methods for Determination of the Degradation of Reactor Pressure Vessel Steel
title_fullStr Analysis of Magnetic Nondestructive Measurement Methods for Determination of the Degradation of Reactor Pressure Vessel Steel
title_full_unstemmed Analysis of Magnetic Nondestructive Measurement Methods for Determination of the Degradation of Reactor Pressure Vessel Steel
title_short Analysis of Magnetic Nondestructive Measurement Methods for Determination of the Degradation of Reactor Pressure Vessel Steel
title_sort analysis of magnetic nondestructive measurement methods for determination of the degradation of reactor pressure vessel steel
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8470896/
https://www.ncbi.nlm.nih.gov/pubmed/34576479
http://dx.doi.org/10.3390/ma14185256
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