Corrosion behavior of ZrN coated ferritic/martensitic steel in liquid lead-bismuth eutectic

Changda Zhu; Guiliang Liu; Baohua Yu; Qingsong Chen; Wei Zhang; Jian Yang; Jiuguo Deng; Yilong Zhong; Ning Liu; Jijun Yang

Nuclear Materials and Energy (Sep 2023)

Corrosion behavior of ZrN coated ferritic/martensitic steel in liquid lead-bismuth eutectic

Changda Zhu,
Guiliang Liu,
Baohua Yu,
Qingsong Chen,
Wei Zhang,
Jian Yang,
Jiuguo Deng,
Yilong Zhong,
Ning Liu,
Jijun Yang

Affiliations

Changda Zhu: Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, PR China
Guiliang Liu: Nuclear Power Institute of China, Chengdu 610213, PR China
Baohua Yu: Nuclear Power Institute of China, Chengdu 610213, PR China
Qingsong Chen: Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, PR China
Wei Zhang: Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, PR China
Jian Yang: Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, PR China
Jiuguo Deng: Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, PR China
Yilong Zhong: Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, PR China
Ning Liu: Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, PR China
Jijun Yang: Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, PR China; Corresponding author.

Journal volume & issue: Vol. 36
p. 101475

Abstract

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The corrosion resistance of the ZrN coating deposited on ferritic/martensitic (F/M) steel by the magnetron sputtering method was investigated in static liquid lead–bismuth eutectic (LBE) at 450 ∼ 650 °C. After LBE corrosion test, although ZrN was oxidized to form ZrO2, no spallation, dissolution attack and liquid Pb/Bi penetration occurred in the coating. The results indicate that oxidized coatings still have good adhesion and could protect the F/M steels substrates from LBE corrosion. However, several microscopic cracks and voids inside the coating were observed, which was related to the volume expansion induced by Pilling-Bedworth ratio (PBR) effect and phase transformation. Further, the microscopic corrosion mechanism of the coating was discussed.

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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