Microstructure response and lead-bismuth eutectic corrosion behavior of 11Cr1Si ferritic/martensitic steel after Au-ion irradiation

Chen, Qingsong; Bai, Fan; Wang, Peng; Yang, Jian; Zhu, Changda; Zhang, Wei; Liu, Hao; Zhong, Yilong; Deng, Jiuguo; Liu, Ning; Yang, Jijun

doi:10.1016/j.corsci.2022.110101

Cited by 37 publications

(4 citation statements)

References 77 publications

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“…In the corrosion experiment after irradiation in Refs. [21,22], a thicker oxide layer was observed in the irradiated specimen when a protective oxide layer formed in both specimens. This difference in thickness suggested that the oxide layer growing in the irradiated specimen had differences when allowing ions to pass through.…”

Section: Comparison Of the As-received Specimen And The Irradiated Sp...mentioning

confidence: 89%

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The Effects of Irradiation on the Improvement in Oxidation Behavior of MX-ODS Steel in Liquid Pb

Xu,

Xie,

Qiu

et al. 2024

Nanomaterials

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Lead-cooled fast reactors exhibit strong inherent safety performance and good economic features, while material degradation due to corrosion and irradiation is still challenging. Oxide dispersion-strengthened steels are one of the promising candidates for fuel cladding materials. The effects of both irradiation and corrosion on ODS steel need to be further studied. In this work, MX-ODS steel was irradiated by Fe ions at 500 °C up to 46 dpa. Later, the as-received specimen and the irradiated specimen were used to conduct corrosion tests in oxygen-saturated Pb at 550 °C for 1 h. In the as-received specimen, discontinuous oxides penetrated by Pb and Pb in contact with steel matrix were observed, demonstrating unsatisfactory corrosion resistance of the material. However, in the irradiated specimen after corrosion experiment, a protective oxide layer formed and prevented Pb attack. The oxidation behavior differences between the two specimens can be attributed to the defects produced by irradiation and the structural discrepancy in oxides caused by the formation process. A possible mechanism of irradiation on the corrosion is discussed. In the as-received specimen, Fe atoms loss led to voids in the oxides, and lead penetrated the oxides through these voids. In the irradiated specimen, defects left by previous irradiation helped to form a more uniform oxide layer. The adhesive outer magnetite oxide and the Fe ions generated from where grain boundary oxidation developed retarded the presence of voids and made the oxide layer protective.

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Section: Comparison Of the As-received Specimen And The Irradiated Sp...mentioning

confidence: 89%

“…Additionally, LBE corrosion after heavy ion irradiation in Ref. [21] and Ref. [22] suggested that irradiation-induced defects resulted in more severe oxidation and spike-like oxides in the matrix.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Irradiation on the Improvement in Oxidation Behavior of MX-ODS Steel in Liquid Pb

Xu,

Xie,

Qiu

et al. 2024

Nanomaterials

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“…In the presence of high oxygen potential, duplex oxide films are formed on the surfaces of F/M (ferritic/martensitic) and austenitic steel. These oxide films consist of an outer layer with an Fe-Cr spinel structure and an inner layer with a dense structure rich in Cr and O [7,13,14]. Nevertheless, this passive film is only beneficial for the cladding tubes at temperatures below 500 • C [15].…”

Section: Introductionmentioning

confidence: 99%

“…14, with a corresponding Young's modulus of 113.4, 194.1, and 83.5 GPa. Generally, the hardness of Al2O3 coatings is approximately 9 GPa.…”

mentioning

confidence: 99%

The Corrosion Behavior of Al/Al2O3 Composite Films with Ultra-Dense Structure Exposed to Lead-Bismuth Eutectic at 450 to 650 °C

Yin

Wang

et al. 2023

Coatings

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Al2O3 coatings are the most promising candidate material for mitigating (lead-bismuth eutectic) LBE corrosion at elevated temperatures, but preventing inward diffusion of Pb, Bi, and O for the ceramic coating remains a critical challenge. Here, we have fabricated an amorphous Al2O3 coating with an ultra-dense structure by continuous high-power magnetron sputtering (C-HPMS). After LBE corrosion at 550 °C for 2000 h, nanocavities induced by the phase transformation from amorphous to γ-Al2O3 provide the diffusion path for Fe, O, Pb, and Bi in which the corrosion products, such as Fe3O4, PbO2, or their mixed oxides, form. Furthermore, the diffusion of Pb to the substrate and Cr segregation at the interface between the coating and substrate are observed for the sample exposed to LBE at 550 °C for 4000 h. Additionally, the hardness and interface bonding strength are enhanced after LBE corrosion. Moreover, pit corrosion was found to be the main failure mode of coating, and pits that merged with each other induced large area failure at a temperature of 650 °C. The corrosion mechanism of Al2O3 includes element diffusion, phase transformation, and chemical reaction. This work not only provides a deep understanding of the corrosion mechanism of amorphous Al2O3 coatings, but also shows the optimization method on the corrosion resistance of Al2O3 coating.

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Microstructural Design via Quenching and Partitioning for Enhanced Mechanical and Wear Properties in AISI 9254 Spring Steel: A Comprehensive Investigation

Masoumi,

Centeno,

Tressia

et al. 2024

Metall Mater Trans A

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Microstructure response and lead-bismuth eutectic corrosion behavior of 11Cr1Si ferritic/martensitic steel after Au-ion irradiation

Cited by 37 publications

References 77 publications

The Effects of Irradiation on the Improvement in Oxidation Behavior of MX-ODS Steel in Liquid Pb

The Effects of Irradiation on the Improvement in Oxidation Behavior of MX-ODS Steel in Liquid Pb

The Corrosion Behavior of Al/Al2O3 Composite Films with Ultra-Dense Structure Exposed to Lead-Bismuth Eutectic at 450 to 650 °C

Microstructural Design via Quenching and Partitioning for Enhanced Mechanical and Wear Properties in AISI 9254 Spring Steel: A Comprehensive Investigation

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