TEM and 3DAP characterization of solute-dislocation interactions
| Project/Area Number |
26420850
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Nuclear fusion studies
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| Research Institution | University of Toyama |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
徐 ぎゅう 京都大学, 原子炉実験所, 准教授 (90273531)
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 鈴木偏析 / 照射 / 3DAP / 転位 / 格子欠陥 / 偏析 |
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| Outline of Final Research Achievements |
We observed the Suzuki segregation on the extended edge dislocations in Al-Mg-Si alloy. Under the aging at 573K, enrichment of Si on the Shockley partial dislocations. In Mg, similar enrichment around the Shockley partial dislocations was recognized. The segregation behaviors of over size and under size solute atoms are similar to that of the neutron irradiated austenite stainless steels. It is thought that segregation behavior of solute under aging and irradiation at elevated temperature. In the case of irradiated dislocations, it grow and moved in the matrix, in addition mobility of solute atoms are large. Therefore it is suggested that the solute atoms easily segregate to elastic field of dislocations or trapped directly on defects such as stacking fault and core of dislocations.
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Report
(5 results)
Research Products
(32 results)
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[Journal Article] Quantitative Evaluation of Hydrogen Atoms Trapped at Single Vacancies in Tungsten using Positron Annihilation lifetime Measurements: Experiments and Theoretical Calculations2017
Author(s)
K .Sato, A. Hirosako, K. Ishibashi, Y. Miura, Q. Xu, M. Onoue, Y. Fukutoku, T. Onitsuka, M. Hatakeyama, S. Sunada, T. Yoshiie
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Journal Title
Journal of Nuclear Materials
Volume: 496
Pages: 9-17
DOI
Related Report
Peer Reviewed / Open Access
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