2011 Fiscal Year Final Research Report
Investigation of mobile defect clusters in iron and iron-based alloys by means of ion-irradiation and in-situ observations
| Project/Area Number |
21360463
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nuclear engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
HIROAKI Abe 東北大学, 金属材料研究所, 教授 (40343925)
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| Co-Investigator(Kenkyū-buntansha) |
IWAI Takeo 東京大学, 工学系研究科, 助教 (30272529)
SEKIMURA Naoto 東京大学, 工学系研究科, 教授 (10183055)
SATO Yuhki 東北大学, 金属材料研究所, 准教授 (20211948)
KIM Sawoong 東北大学, 金属材料研究所, 助教 (50566479)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 燃料 / 材料 / 格子欠陥 |
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| Research Abstract |
Iron and iron-based alloys are one of indispensable structural materials for nuclear reactors. In this work, to clarify the irradiation effects on the above materials, laser ablation technique, transmission electron microscopy, accelerator technique, molecular dynamics and isochronal annealing technique were applied. The laser ablation was developed to synthesize high purity thin films. In situ observations and measurements under ion irradiation were applied to detect microstructural evolutions and annealing stage of the crowdion-type interstitials, respectively. Molecular dynamics was developed to evaluate displacement threshold energy and multiple threshold events based on the motion of the crowdion-type interstitials.
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