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Comparison of four NDT methods for indication of reactor steel degradation by high fluences of neutron irradiation
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SYSNO ASEP 0424818 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Comparison of four NDT methods for indication of reactor steel degradation by high fluences of neutron irradiation Author(s) Tomáš, Ivan (FZU-D) RID
Vértesy, G. (HU)
Pirfo Barroso, S. (HU)
Kobayashi, S. (JP)Source Title Nuclear Engineering and Design. - : Elsevier - ISSN 0029-5493
Roč. 265, DEC (2013), s. 201-209Number of pages 9 s. Language eng - English Country NL - Netherlands Keywords neutron irradiation ; steel degradation ; nuclear reactor pressure vessel ; magnetic NDT ; magnetic minor hysteresis loops ; Magnetic Barkhausen Emission Subject RIV BM - Solid Matter Physics ; Magnetism Institutional support FZU-D - RVO:68378271 UT WOS 000330085500021 EID SCOPUS 84885660048 DOI 10.1016/j.nucengdes.2013.06.020 Annotation Results of three magnetic nondestructive methods, Magnetic Barkhausen Emission (MBE), magneticminor loops Power Scaling Laws (PSL) and Magnetic Adaptive Testing (MAT), and of one referencemechanical measurement, Vickers Hardness (HV), applied on the same series of neutron heavily irradiatednuclear reactor pressure vessel steel materials, were normalized and presented here for the purpose oftheir straightforward quantitative mutual comparison. It is uncommon to carry out different round-robintesting on irradiated materials, and if not answering all open questions, the comparison alone justifiesthis paper. The assessment methods were all based on ferromagnetism, although each of them used adifferent aspect of it. The presented comparison yielded a justified recommendation of the most reli-able nondestructive method for indication of the reactor steel irradiation hardening and embrittlement effects.... Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2014
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