Study of a new mechanism for the suppression of radiation damage in materials
| Project/Area Number |
15H04244
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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 | Shimane University |
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Principal Investigator |
Arakawa Kazuto 島根大学, 総合理工学研究科, 准教授 (30294367)
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| Co-Investigator(Kenkyū-buntansha) |
武藤 哲也 島根大学, 総合理工学研究科, 准教授 (50312244)
大島 義文 北陸先端科学技術大学院大学, マテリアルサイエンス研究科, 准教授 (80272699)
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| Co-Investigator(Renkei-kenkyūsha) |
TANAKA Nobuo 名古屋大学, エコトピア科学研究所, 教授 (40126876)
YASUDA Hidehiro 大阪大学, 工学研究科, 教授 (60210259)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2017: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2016: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2015: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
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| Keywords | 照射損傷 / 格子欠陥 / 電子顕微鏡 / 核融合炉 / 原子炉 / 転位 / 衝突カスケード / 原子空孔 / 格子間原子 |
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| Outline of Final Research Achievements |
Primary origins of the degradation of nuclear-fission and fusion materials are accumulation of point-defect clusters upon neutron irradiation. Understanding accumulation processes of point-defect clusters requires accurate knowledge on the behaviors of various small defects such as generation, motion, and interaction.
In the present study, we have examined comparatively simple model metals using high-voltage electron microscopes and an ion-accelerator combined electron microscope, and revealed some behaviors of nanometer-sized defects.
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Report
(4 results)
Research Products
(49 results)
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[Journal Article] FEMTOSECOND LASER PEENING OF 2024 ALUMINUM ALLOY WITHOUT A SACRIFICIAL OVERLAY UNDER ATMOSPHERIC CONDITIONS2017
Author(s)
Tomokazu Sano, Takayuki Eimura, Ryota Kashiwabara, Tomoki Matsuda, Yutaro Isshiki, Akio Hirose, Seiichiro Tsutsumi, Kazuto Arakawa, Tadafumi Hashimoto, Kiyotaka Masaki, and Yuji Sano
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Journal Title
Journal of Laser Applications
Volume: 29
Issue: 1
Pages: 1-7
DOI
NAID
Related Report
Peer Reviewed / Open Access
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[Presentation] Direct HRTEM Observation of the Clustering Process of Self-Interstitial Atoms in Iron2016
Author(s)
Kazuto Arakawa, Shigeo Arai, Cosmin Marinica, Estelle Meslin, Francois Willaime, Takafumi Amino, Par Olsson, Sergei Dudarev, Yonfeng Zhang, Hidehiro Yasuda, Hirotaro Mori, Yoshifumi Oshima, Yuta Yamamoto, Nobuo Tanaka
Organizer
8th International Conference on Multiscale Materials Modeling (MMM 2016)
Place of Presentation
Palais des Congress, Dijion, France
Year and Date
2016-10-09
Related Report
Int'l Joint Research / Invited
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[Presentation] Structure & Dynamics of Radiation-Produced Defects in Metals: Comparison between Electron and Self-ion Irradiations2016
Author(s)
Kazuto Arakawa, Ryota Nagasawa, Cedric Baumier, Brigitte Decamps, Estelle Meslin, Francois Willaime, Hidehiro Yasuda, Hirotaro Mori, Shigeo Arai, Nobuo Tanaka, Takafumi Amino, Shiori Ishino
Organizer
The Fourth Workshop On TEM With In Situ Irradiation (WOTWISI-4)
Place of Presentation
Orsay & Gif sur Yvette
Year and Date
2016-03-16
Related Report
Int'l Joint Research / Invited
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[Presentation] タングステンのセルフイオン照射による転位ループの異常安定化2015
Author(s)
荒河一渡, 長澤良太, Brigitte Decamps, Cedric Baumier, Erwan Oliviero, Estelle Meslin, Francois Willaime, 保田英洋, 森博太郎, 荒井重勇, 田中信夫, 網野岳文, 石野栞
Organizer
日本金属学会2015年秋期講演大会
Place of Presentation
九州大学
Year and Date
2015-09-16
Related Report
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[Presentation] タングステンのセルフイオン照射 下での転位ループ形成過程のTEMその場観察2015
Author(s)
荒河一渡, 長澤良太, Brigitte Décamps, Cédric Baumier, Erwan Oliviero, Estelle Meslin, Francois Willaime, 保田英洋, 森博太郎, 荒井重勇, 田中信夫, 網野岳文, 石野栞
Organizer
日本顕微鏡学会第71回学術講演会
Place of Presentation
国立京都国際会館
Year and Date
2015-05-13
Related Report
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