2017 Fiscal Year Final Research Report
Possibility of electromagnetic method for evaluation of irradiation embrittlement for highly irradiated nuclear reactor materials
| Project/Area Number |
25289346
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Nuclear engineering
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| Research Institution | Iwate University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
KAMADA YASUHIRO 岩手大学, 理工学部, 教授 (00294025)
KIKUCHI HIROAKI 岩手大学, 理工学部, 准教授 (30344617)
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| Project Period (FY) |
2013-04-01 – 2018-03-31
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| Keywords | 磁性 / 中性子照射 / 非破壊評価 / 原子炉圧力容器鋼 |
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| Outline of Final Research Achievements |
Various types of measurements including hardness, magnetic measurements, small-angle neutron scattering experiments were performed for highly neutron-irradiated nuclear pressure vessel steels. For all measuring samples, magnetic properties were found to decrease in the high neutron fluence regime, and its decrease is large for samples with high Cu content, which is a key element of irradiation hardening. Moreover, its decrease has a relationship with volume fraction of Cu precipitates. Considering that magnetic properties exhibits a monotonic decrease with fluence in medium and high fluence regime, magnetic properties can be used for non-destructive evaluation of irradiation hardening.
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| Free Research Field |
磁性
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