An approximate in-situ method for investigating irradiation damage of grain boundary

Lei Zhang; Yufeng Du; Wentuo Han; Pingping Liu; Xiaoou Yi; Kiyohiro Yabuuchi; Somei Ohnuki; Farong Wan

Nuclear Materials and Energy (Dec 2021)

An approximate in-situ method for investigating irradiation damage of grain boundary

Lei Zhang,
Yufeng Du,
Wentuo Han,
Pingping Liu,
Xiaoou Yi,
Kiyohiro Yabuuchi,
Somei Ohnuki,
Farong Wan

Affiliations

Lei Zhang: School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
Yufeng Du: The Oarai Branch, Institute for Materials Research, Tohoku University, Oarai, Ibaraki 311-1313, Japan
Wentuo Han: School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China; Corresponding authors.
Pingping Liu: School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
Xiaoou Yi: School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
Kiyohiro Yabuuchi: Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
Somei Ohnuki: School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China; Material Science and Engineering, Faculty of Engineering, Hokkaido University, Sapporo 060-8626, Japan
Farong Wan: School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China; Corresponding authors.

Journal volume & issue: Vol. 29
p. 101056

Abstract

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Grain boundary plays an important role in irradiation damage. The presented work proposes an approximate in-situ method, mesh-covered ion irradiation (MCII) for investigating the irradiation damage. The method was applied to a Fe-9 wt.% Al model alloy. During irradiation, transmission electron microscopy (TEM) samples prepared by twin-jet electro-polishing were covered by 400-Cu gilder grids with a pitch of 62 µm, a hole width of 37 µm, and a bar width of 25 µm. After He irradiations, in both the high-angle boundary and the sub-grain boundary, the irradiated and non-irradiated zones can be simultaneously generated. The MCII method provides an approximate in-situ method to investigate irradiation damage of grain boundaries when separately using a conventional ion accelerator and a TEM.

Published in Nuclear Materials and Energy

ISSN: 2352-1791 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Nuclear engineering. Atomic power
Website: http://www.journals.elsevier.com/nuclear-materials-and-energy/

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