Irradiation effects on microstructure, mechanical properties, and lead-bismuth eutectic corrosion resistance of alumina coating

Yilong Zhong; Qingyu Li; Yanli Zhao; Yi Zhou; Wei Zhang; Jian Yang; Changda Zhu; Jiuguo Deng; Qingsong Chen; Sha Zhao; Hao Liu; Ning Liu; Xi Qiu; Jijun Yang

Journal of Materials Research and Technology (Jul 2023)

Irradiation effects on microstructure, mechanical properties, and lead-bismuth eutectic corrosion resistance of alumina coating

Yilong Zhong,
Qingyu Li,
Yanli Zhao,
Yi Zhou,
Wei Zhang,
Jian Yang,
Changda Zhu,
Jiuguo Deng,
Qingsong Chen,
Sha Zhao,
Hao Liu,
Ning Liu,
Xi Qiu,
Jijun Yang

Affiliations

Yilong Zhong: Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, 610064, China
Qingyu Li: Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, 610064, China
Yanli Zhao: Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China
Yi Zhou: Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China
Wei Zhang: Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, 610064, China
Jian Yang: Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, 610064, China
Changda Zhu: Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, 610064, China
Jiuguo Deng: Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, 610064, China
Qingsong Chen: Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, 610064, China
Sha Zhao: Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, 610064, China
Hao Liu: Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, 610064, China
Ning Liu: Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, 610064, China
Xi Qiu: Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China; Corresponding author.
Jijun Yang: Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, 610064, China; Corresponding author.

Journal volume & issue: Vol. 25
pp. 2014 – 2028

Abstract

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A comprehensive evaluation including microstructure, mechanical properties, and lead-bismuth eutectic corrosion resistance of amorphous alumina coatings after different doses of Au2+ irradiation was done using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, nanoindentation, SRIM software, and eRDF Analyzer. The results showed that irradiation decreased the surface roughness and induced crystallization in the middle of the coating and at the interface. The middle crystallization might be dominated by electron energy loss, while the interface had to consider the influence of defects and doping. The regions that remain amorphous after irradiation also showed differences in topological bonding and nanovoid. The changes in topological bonding hardened the coating, while the nanovoids generated by atomic rearrangement weakened the mechanical properties. The irradiation deteriorated the lead-bismuth corrosion resistance of the coating due to the void formation and alumina phase transformation. In addition, enhanced temperature sensitivity at the interface was observed after irradiation.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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