Nondestructive Evaluation of Irradiation Embrittlement of SQV2A Steel by Using Magnetic Method

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 2006Publisher:AIPJournal:AIP Conference Proceedings, volume 820, pages 1,163-1,170 (issn: 0094-243X,

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Authors: Mitsuharu Shiwa;

doi: 10.1063/1.2184656

Nondestructive Evaluation of Irradiation Embrittlement of SQV2A Steel by Using Magnetic Method

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Abstract

Irradiation embrittlement of SQV2A steel was evaluated by magnetic methods. Thermal aging (TA) and electron irradiation (EI) specimens were prepared to evaluate the thermal aging and the irradiation damage effects separately. B‐H loops changed with TA and EI. Higher harmonics of AC magnetization signals were sensitive to micro‐structure changing of specimens. The intensity of the 3rd harmonics increased linearly with over 100 years of equivalent operation time by Larson‐Miller parameter of nuclear power plants.

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Okayama University
Japan

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