Comparison of four NDT methods for indication of reactor steel degradation by high fluences of neutron irradiation

0424818 - FZÚ 2014 RIV NL eng J - Journal Article
Tomáš, Ivan - Vértesy, G. - Pirfo Barroso, S. - Kobayashi, S.
Comparison of four NDT methods for indication of reactor steel degradation by high fluences of neutron irradiation.
Nuclear Engineering and Design. Roč. 265, DEC (2013), s. 201-209. ISSN 0029-5493. E-ISSN 1872-759X
Institutional support: RVO:68378271
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
Impact factor: 0.972, year: 2013
http://www.sciencedirect.com/science/article/pii/S0029549313004664

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....
Permanent Link: http://hdl.handle.net/11104/0230830