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Article

Magnetic Investigation of Cladded Nuclear Reactor Blocks

1
Centre for Energy Research, Institute of Technical Physics and Materials Science, 1121 Budapest, Hungary
2
Department of Broadband Infocommunications and Electromagnetic Theory, Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary
*
Author to whom correspondence should be addressed.
Academic Editor: Giovanni Bruno
Materials 2022, 15(4), 1425; https://doi.org/10.3390/ma15041425
Received: 19 January 2022 / Revised: 2 February 2022 / Accepted: 8 February 2022 / Published: 15 February 2022
(This article belongs to the Special Issue Micro Non-destructive Testing and Evaluation)
The wall, made of ferromagnetic steel, of a nuclear reactor pressure vessel is covered by an austenitic (very weakly ferromagnetic) cladding. In this work, we investigated how the base material and the cladding can be inspected separately from each other by nondestructive magnetic measurements. It was found that with the proper choice of the magnetizing yoke, these two different materials could be measured independently of each other. The effect of the yoke’s size was studied by the numerical simulation of magnetic flux, pumped into the material during magnetic measurements. Measurements were performed by two different sizes of yokes on pure base material, on base material under cladding and on cladding itself. Experiments verified the results of the simulation. Our results can help for the future practical application of magnetic methods in the regular inspection of nuclear power plants. View Full-Text
Keywords: magnetic nondestructive evaluation; nuclear reactor pressure vessel; austenitic cladding; steel degradation magnetic nondestructive evaluation; nuclear reactor pressure vessel; austenitic cladding; steel degradation
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MDPI and ACS Style

Vértesy, G.; Gasparics, A.; Szenthe, I.; Bilicz, S. Magnetic Investigation of Cladded Nuclear Reactor Blocks. Materials 2022, 15, 1425. https://doi.org/10.3390/ma15041425

AMA Style

Vértesy G, Gasparics A, Szenthe I, Bilicz S. Magnetic Investigation of Cladded Nuclear Reactor Blocks. Materials. 2022; 15(4):1425. https://doi.org/10.3390/ma15041425

Chicago/Turabian Style

Vértesy, Gábor, Antal Gasparics, Ildikó Szenthe, and Sándor Bilicz. 2022. "Magnetic Investigation of Cladded Nuclear Reactor Blocks" Materials 15, no. 4: 1425. https://doi.org/10.3390/ma15041425

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