experimental analysis of one-dimensional migration of interstitial clusters and defect accumulation model under irradiation
| Project/Area Number |
21560868
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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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 |
SATOH Yuhki 東北大学, 金属材料研究所, 准教授 (20211948)
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| Co-Investigator(Kenkyū-buntansha) |
ABE Hiroaki 東北大学, 金属材料研究所, 教授 (40343925)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | 照射損傷 / 格子欠陥 / 電子顕微鏡 / 転位ループ / ステンレス鋼 / 原子力エネルギー / 透過電子顕微鏡 / その場観察 / 計算機シミュレーション / 計起シミュレーション |
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| Research Abstract |
Mechanisms of one-dimensional(1D)migration processes of interstitial clusters in practical alloys were examined by experimental observation using high-voltage electron microscopy and by computer simulations based on molecular statics and molecular dynamics methods. It was found that 1D migration observed under electron irradiation around room temperature was induced by a mixing effect of solute distribution. It was also clarified that 1D migration was suppressed at higher temperatures due to a segregation of interstitial impurities at interstitial clusters.
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Report
(4 results)
Research Products
(23 results)
