Thermal-shock Properties and Anticorrosion Behavior in Static LBE of Al2O3-TiO2/FeCrAl Coating by Multi-Arc Ion Plating

Zhang Shunlin; Pan Dong; Yin Xing; Chen Yong; Zhao Haibo; Sun Lan; Wang Jun

doi:10.13832/j.jnpe.2024.01.0090

Volume 45 Issue 1

Feb. 2024

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Article Navigation > Nuclear Power Engineering > 2024 > 45(1): 90-97

Zhang Shunlin, Pan Dong, Yin Xing, Chen Yong, Zhao Haibo, Sun Lan, Wang Jun. Thermal-shock Properties and Anticorrosion Behavior in Static LBE of Al2O3-TiO2/FeCrAl Coating by Multi-Arc Ion Plating[J]. Nuclear Power Engineering, 2024, 45(1): 90-97. doi: 10.13832/j.jnpe.2024.01.0090

Citation:

Zhang Shunlin, Pan Dong, Yin Xing, Chen Yong, Zhao Haibo, Sun Lan, Wang Jun. Thermal-shock Properties and Anticorrosion Behavior in Static LBE of Al₂O₃-TiO₂/FeCrAl Coating by Multi-Arc Ion Plating[J]. Nuclear Power Engineering, 2024, 45(1): 90-97. doi: 10.13832/j.jnpe.2024.01.0090

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Thermal-shock Properties and Anticorrosion Behavior in Static LBE of Al₂O₃-TiO₂/FeCrAl Coating by Multi-Arc Ion Plating

doi: 10.13832/j.jnpe.2024.01.0090

1.
School of Mechanical Engineering, Sichuan University, Chengdu, 610065, China
2.
Nuclear Power Institute of China, Chengdu, 610213, China
3.
Analytical & Testing Center, Sichuan University, Chengdu, 610065, China

Received Date: 2023-04-23
Rev Recd Date: 2023-06-20
Publish Date: 2024-02-15

Abstract

Abstract

This work aims to explore a method for preparing the surface coating of FeCrAl alloy, a cladding material in nuclear power industry. The Al₂O₃-TiO₂ coating with FeCrAl as the intermediate layer was prepared on FeCrAl alloy by multi-arc ion plating. The thermal-shock test was carried out to explore the thermal-shock resistance of the coating. The corrosion resistance of the coating was studied after the static lead-bismuth eutectic (LBE) corrosion test at 600℃ for 1000 h. The phase composition and micromorphologies of substrate and coating samples before and after LBE corrosion were characterized. The results showed that the Al₂O₃-TiO₂ prepared by multi-arc ion plating was amorphous. After 30 thermal shock tests, the coating did not crack or fall off. After the corrosion, the surface of FeCrAl substrate showed obvious dissolution corrosion. GIXRD results showed that Al₂O₃ crystallization occurred in the coating samples after corrosion. The Al₂O₃ structure on the surface shrank and pores appeared, while the inner layer of the coating remained dense. The sectional analysis showed that LBE did not penetrate into the coating. Therefore, the Al₂O₃-TiO₂/FeCrAl coating can effectively protect the substrate from LBE corrosion.
- FeCrAl alloy,
- Multi-arc ion plating,
- Al₂O₃-TiO₂/FeCrAl coating,
- Thermal-shock resistance,
- Lead-bismuth eutectic (LBE) corrosion

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References(30)

References

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