Corrosion behaviors of FeCrAl alloys exposed to oxygen-saturated static lead bismuth eutectic at 550 °C

Zhu, Zhaoguang; Tan, Jun; Wu, Xi; Zhang, Ziyu; Han, En‐Hou; Wang, Xiang

doi:10.1016/j.corsci.2022.110767

Cited by 22 publications

(4 citation statements)

References 59 publications

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“…Generally, the diffusion of Al element in the coating has two different directions. On the one hand, it diffuses to the surface to form an Alrich oxide scale by short-range diffusion [8]. On the other hand, it diffuses into the substrate to form Fe-Al compounds [35,36].…”

Section: Discussionmentioning

confidence: 99%

“…In addition, the coating doped with Y element also has excellent corrosion resistance. It has been widely reported that the small addition of Y can improve corrosion resistance [8]. Generally, the solubility of the Y element in the FeCrAl and oxide scale is extremely low (about 30-60 ppma in FeCrAl) [44].…”

Section: Discussionmentioning

confidence: 99%

“…Several methods have been proposed to solve the problems mentioned above, including the control of the dissolved oxygen in the liquid LBE [6], the modification of the cladding tube [7,8], and the deposition of the protective coating [9]. Among them, surface coating technology is regarded as one of the most effective methods, because it can significantly improve the corrosion resistance while maintaining the outstanding mechanical properties of the cladding tube [10,11].…”

Section: Introductionmentioning

confidence: 99%

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Investigation and evaluation of high-temperature lead-bismuth eutectic (LBE) corrosion resistance and compression performance of the FeCrAl-based coatings

Zhang,

Qiu,

Zhou

et al. 2024

Mater. Res. Express

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The high-temperature lead-bismuth eutectic (LBE) corrosion resistance and ring compression performance of the Fe15Cr11Al2Si, Fe15Cr11Al0.5Y, and Fe15Cr11Al2Si0.5Y coatings were investigated. Even if the corrosion test temperature reaches 800 ℃, all these coatings can effectively protect the steel cladding tube. After the corrosion test temperature exceeded 660 ℃, an obvious Al-rich oxide layer was formed on the surface of the coating, and Al element enrichment occurred at the interface between the coating and the substrate. After the corrosion test at 800 ℃, holes appeared in the thick interface layer of the Fe15Cr11Al2Si0.5Y coating. The Fe15Cr11Al2Si coating cracked after the ring compression test with a deformation rate of 3%, and the coating peeled off after the deformation rate reached 5%. When the deformation rate reached 5%, there was still no cracking in the Fe15Cr11Al0.5Y coating. When the deformation rate reached 30%, the coating cracked, but the cracked coating was still tightly bonded with the substrate. The Fe15Cr11Al2Si0.5Y coating has the worst compression performance, even if the deformation rate is 1%, the coating still peels off obviously. The underlying mechanism for the evolution of corrosion resistance and compression performance was discussed.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation and evaluation of high-temperature lead-bismuth eutectic (LBE) corrosion resistance and compression performance of the FeCrAl-based coatings

Zhang,

Qiu,

Zhou

et al. 2024

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…The large amount of experimental data provides a good basis for the subsequent study. Scientific workers have conducted large amounts of research on the corrosion of structural materials with LBE [5,12,[30][31][32][33][34][35][36][37][38][39][40][41][42][43], which provides an important basis for subsequent material optimization and material selection. This paper mainly reviews the basic structure of liquid lead-bismuth corrosion characteristics, and the main methods of inhibiting liquid lead-bismuth corrosion are summarized.…”

Section: Introductionmentioning

confidence: 99%

A Review of Corrosion Behavior of Structural Steel in Liquid Lead–Bismuth Eutectic

et al. 2023

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Liquid lead–bismuth eutectic alloy is one of the candidate coolants for fourth-generation nuclear power systems because of its good physical and chemical properties, neutron economic performance, and safety. However, the compatibility between the coolant and structural steel is still the main factor restricting its large-scale industrial application in the nuclear energy field. Structural steel in a liquid lead–bismuth eutectic alloy for a long time would cause severe corrosion. The erosion of structural steel by high-flow-rate liquid lead–bismuth alloy will lead to a more complex corrosion process. This paper mainly reviews the corrosion characteristics of liquid lead–bismuth and the corrosion behavior of structural steel in liquid lead-bismuth eutectic. The main methods of inhibiting liquid lead–bismuth corrosion are summarized, and future research directions are suggested.

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Effect of heat treatment on the microstructure, LBE corrosion resistance, and bonding strength of the FeCrAl‐based coatings

Zhang,

Zhou,

Yue

et al. 2024

Materials & Corrosion

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The bonding strength and LBE corrosion resistance of the Fe15Cr11Al2Si, Fe15Cr11Al0.5Y, and Fe15Cr11Al2Si0.5Y coatings heat‐treated at 500–650°C for 500 h were investigated. The results showed that the as‐deposited Fe15Cr11Al0.5Y coating has the strongest bonding strength with the F/M steel cladding tube compared with the Fe15Cr11Al2Si and Fe15Cr11Al2Si0.5Y coatings. Heat treatment deteriorates the bonding performance of the coatings, and obvious enrichment of Cr and Al elements appeared. The consumed Al element inside the heat‐treated coatings promotes the formation of Fe3O4 on the surface of the coatings after the corrosion test. The Y element can inhibit the enrichment of elements and the formation of Fe3O4. The bonding strength of the heat‐treated coatings can be improved after the corrosion test. The underlying mechanism of the evolution of microstructure and properties of the coatings after heat treatment and corrosion test was discussed.

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Corrosion behaviors of FeCrAl alloys exposed to oxygen-saturated static lead bismuth eutectic at 550 °C

Cited by 22 publications

References 59 publications

Investigation and evaluation of high-temperature lead-bismuth eutectic (LBE) corrosion resistance and compression performance of the FeCrAl-based coatings

Investigation and evaluation of high-temperature lead-bismuth eutectic (LBE) corrosion resistance and compression performance of the FeCrAl-based coatings

A Review of Corrosion Behavior of Structural Steel in Liquid Lead–Bismuth Eutectic

Effect of heat treatment on the microstructure, LBE corrosion resistance, and bonding strength of the FeCrAl‐based coatings

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