Dissolution and oxidation behaviour of various austenitic steels and Ni rich alloys in lead-bismuth eutectic at 520 °C

Roy, Marion; Martinelli, Laure; Ginestar, Kevin; Favergeon, Jérôme; Moulin, Gérard

doi:10.1016/j.jnucmat.2015.11.005

Cited by 66 publications

(35 citation statements)

References 43 publications

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“…obtained under the same conditions). However, the present results can be considered to be consistent with those obtained at slightly lower temperatures and with an oxygen concentration that is in the same domain …”

Section: Discussionsupporting

confidence: 91%

“…Several authors have confirmed the formation of multiphase non‐protective scales occurring under the conditions of C O ≥ 10 −3 wt% O, which indicates intensive oxidation. Roy et al have studied the oxidation behaviour of austenitic steels in LBE and, according to their study, the experimental conditions used in the present work corresponds to so called “mixed domain” corrosion. Usually, it is observed when the oxygen concentration is bounded by the oxygen content thermodynamically needed to form magnetite, but oxidation and/or dissolution of steels occur.…”

Section: Discussionmentioning

confidence: 89%

“…In fact, although the oxygen partial pressure in the surrounding atmosphere was sufficient to reach saturation conditions, the oxygen content ranging in 10 −5 –10 −4 wt% O was measured by the Pt/air oxygen sensor inside the Pb bath. These operating conditions represent a limit mode of interaction between severe oxidation and strong dissolution and, at the test temperature, they can still be considered as the so called “passivation regime” or “mixed domain.” In Figure , the Ellingham diagram shows the thermodynamic equilibria of the selected oxides of steel constituents as a function of temperature together with the iso‐lines of the concentration of oxygen dissolved in liquid lead, as well as the test conditions of the present work.…”

Section: Methodsmentioning

confidence: 99%

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Corrosion behaviour of oxide dispersion strengthened iron‐chromium steels in liquid lead at 973 K

Ricci

Giuranno

Canu

et al. 2018

Materials & Corrosion

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The corrosion behaviour of oxide dispersion strengthened (ODS) steels with different chromium contents (9, 12 and 14 wt% Cr) is investigated in stagnant liquid lead at a temperature of 973 K for 2000 h. Under an oxygen concentration close to the passivation domain (i.e. Co ∼10−5–10−4 wt% O), neither an internal oxidation zone in the steel matrix, nor dissolution attack caused by liquid lead or its penetration is observed. Indeed, thin layers of chromium rich oxides with different compositions are detected.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 89%

Section: Methodsmentioning

confidence: 99%

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Corrosion behaviour of oxide dispersion strengthened iron‐chromium steels in liquid lead at 973 K

Ricci

Giuranno

Canu

et al. 2018

Materials & Corrosion

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“…Diffusion plays a crucial role in the corrosion resistance properties of coatings. The corrosion of steel is caused by the mutual migration of elements in the liquid corrosion medium (Pb and Bi) and in the steel (Fe, Cr, Ni, and so on) [25,26]. Figure 4 shows the morphology of the samples without ( Figure 4c) and with LBE immersion at different temperatures (Figure 4a,b) for 300 h. The porous structure is formed on the surface of the CLAM steel during immersion in the LBE for 300 h, illustrating that the CLAM steel was subjected to severe corrosion ( Figure 4d).…”

Section: Methodsmentioning

confidence: 99%

Influence of LBE Temperatures on the Microstructure and Properties of Crystalline and Amorphous Multiphase Ceramic Coatings

Chen

Qiu

et al. 2019

Coatings

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An Al2O3–TiO2 amorphous composite coating with a thickness of 100–120 μm was fabricated on China low activation martensitic steel (CLAM steel) by oxygen acetylene flame spraying technology and the laser in-situ reaction method. We investigated the microstructures and mechanical properties of the coating after liquid lead-bismuth eutectic (LBE) alloy corrosion under different temperatures for 300 h and found that the corrosion temperature of the LBE had no observable effect on the microstructure and chemical phase of the Al2O3–TiO2 amorphous composite coatings. However, the mechanical properties (micro-hardness and shear strength) of the Al2O3–TiO2 multiphase coating deteriorated slightly with the increase in the immersion temperature of the LBE. As a result of oxygen acetylene flame spraying and laser in-situ reaction technology, it was found that the Al2O3–TiO2 amorphous composite coating exhibits an excellent LBE corrosion resistance, which is a candidate structural material for the accelerator-driven subcritical system (ADS) to handle nuclear waste under extreme conditions.

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“…The dominant interaction between steels and LBE is dissolution and diffusion. Martensitic steels are also inferior against corrosion resistance exposed to the LBE at 873 K. In addition, Austenitic stainless steel also displays low corrosion resistance due to the Ni element dissolved in LBE severely . The change of Ni, Ta, and Co contents of the metal material surface is one reason for corrosion resistance deterioration .…”

Section: Introductionmentioning

confidence: 99%

The Corrosion Behavior of Multiphase Ceramic Protective Coatings on China Low Activation Martensitic Steel Surface in Flowing Liquid Lead-Bismuth Eutectic

Chen

Qiu

et al. 2017

steel research int.

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China low activation martensitic (CLAM) steel is the preferred candidate structural material for the Chinese international thermonuclear experimental reactor test blanket module (ITER TBM). Surface coating technology is often adopted to alter or improve the performance of materials. In CLAM steel, surface treatment plays a key role in rendering them appropriate for application in accelerator driven sub-critical system (ADS). Here, the authors prepare multiphase ceramic coatings on CLAM steel via laser in-situ reaction technology. The prepared multiphase ceramic coatings exhibit optimal corrosion resistance. The liquid lead-bismuth eutectic (LEB) corrosion resistance can be attributed to inferior wettability of interface between the LEB and multiphase ceramic coatings, faint shear force produced by LEB, and stable chemical and physical property of the coatings. Moreover, the irradiated specimens also display excellent corrosion resistance against helium ions irradiation. The CLAM steel is found to suffer significant corrosion in the flowing LEB. Such multiphase ceramic coatings as a protective layer on the ADS candidate structural materials CLAM steel surface exhibit the strongest LEB corrosion resistance, which can be applied to handle nuclear waste under extreme conditions.

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Dissolution and oxidation behaviour of various austenitic steels and Ni rich alloys in lead-bismuth eutectic at 520 °C

Cited by 66 publications

References 43 publications

Corrosion behaviour of oxide dispersion strengthened iron‐chromium steels in liquid lead at 973 K

Corrosion behaviour of oxide dispersion strengthened iron‐chromium steels in liquid lead at 973 K

Influence of LBE Temperatures on the Microstructure and Properties of Crystalline and Amorphous Multiphase Ceramic Coatings

The Corrosion Behavior of Multiphase Ceramic Protective Coatings on China Low Activation Martensitic Steel Surface in Flowing Liquid Lead-Bismuth Eutectic

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