Corrosion of stainless steel 316L in molten LiCl-Li2O-Li

Phillips, William; Chidambaram, Dev

doi:10.1016/j.jnucmat.2019.02.007

Cited by 10 publications

(12 citation statements)

References 40 publications

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“…Previous work from our group reported the morphological and elemental changes to the base material surface and cross section via scanning electron microscopy (SEM) coupled with energy dispersive X-ray spectroscopy (EDS) for both stainless steel 316 (SS316) and I625. 1,14 The results presented there showed that a stable Cr-based oxide film forms on the surface of I625 upon exposure to molten LiCl-Li 2 O solutions at 650°C in the absence of Li 0 . 1 This oxide film was found to limit the corrosion of these samples to a rate of approximately 0.05 to 0.07 mm/year.…”

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confidence: 84%

Effect of Metallic Li on the Surface Chemistry of Inconel 625 Exposed to Molten LiCl-Li₂O-Li

Phillips

Chidambaram

2019

J. Electrochem. Soc.

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This study explores the surface chemistry of Inconel 625 samples exposed to molten LiCl-Li 2 O-Li solutions at 650°C for 500 and 1000hr and aims to understand the effect of solvated Li on corrosion behavior in molten LiCl-Li 2 O-Li. The surfaces of Inconel 625 samples were analyzed using X-ray diffraction, Raman spectroscopy, and X-ray photoelectron spectroscopy. The oxide films formed on the surface of the samples in the absence of Li is composed of LiCrO 2 , with small contributions of Li 2 CrO 4 and NiFe x Cr 2-x O 4 . The presence of Li was observed to destabilize these compounds, resulting in a primarily metallic surface with trace amounts of oxidized Cr, Mo, and Nb present depending on the concentration of Li in solution.

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confidence: 84%

Effect of Metallic Li on the Surface Chemistry of Inconel 625 Exposed to Molten LiCl-Li₂O-Li

Phillips

Chidambaram

2019

J. Electrochem. Soc.

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“…As shown in Figure 1, oxides of Cr and Mo can be formed at much lower concentrations of O 2-ions compared to Ni and Fe oxides. More complicated, the oxide layer formed on the metal surface can also be dissolved by the basic fluxing mechanism in which case the oxide layer reacts with the O 2-and/or O2 impurities to form soluble ternary products such as LiCrO2 or LiNiO2 [19,20]. The corrosion performance of alloys also largely depends on their chemical composition and microstructural characteristics (e.g., grain size, grain boundary, and the secondary precipitates).…”

Section: Corrosion In Molten Licl-kcl Eutecticmentioning

confidence: 99%

Corrosion Performance of Commercial Alloys and Refractory Metals in Conditions for Electrorefining of Spent Nuclear Fuels

Jia¹,

Chang²,

Du³

et al. 2023

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Molten LiCl-KCl salt and liquid cadmium are proposed as the electrolyte and the reactive cathode for the electrorefining of spent nuclear fuels. Corrosion testing of existing alloys is mandatory to ensure the service life of the electrorefiner vessel and electrode assemblies. Haynes C276, Inconel 600, AISI 316L stainless steel, and 42CrMo low alloy steel were exposed to LiCl-KCl melt at 500°C for 500 h in an argon atmosphere. All alloys suffered from dissolution attacks with the presence of oxide islands or porous oxide layer on the surface. AISI 316L, T91 steel and tungsten specimens were also submitted to corrosion tests in liquid cadmium at 500°C for 120 h. Corrosion of AISI 316L and T91 stainless steel were predominated by chemical oxidation with additional severe Ni dealloying occurred on AISI 316L. Tungsten only suffered from dissolution attack in comparison.

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“…More importantly, RMGs display extremely high thermal stability against crystallization at high temperatures (>700 • C) [204]. As a result, RMGs could be an ideal candidate material for use in a highly corrosive and high temperature environments, such as in molten salts or supercritical water often used in nuclear power plants [205,206].…”

Section: Refractory Mgs For Applications Under Extreme Conditionsmentioning

confidence: 99%

Recent development of chemically complex metallic glasses: from accelerated compositional design, additive manufacturing to novel applications

et al. 2022

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Metallic glasses or amorphous alloys are an important engineering material that has a history of research of about 80-90 years. While different fast cooling methods were developed for multi-component metallic glasses between 1960s and 1980s, 1990s witnessed a surge of research interest in the development of bulk metallic glasses. Since then, one central theme of research in the metallic-glass community has been compositional design that aims to search for metallic glasses with a better glass forming ability, a larger size and/or more interesting properties, which can hence meet the demands from more important applications. In this review article, we focus on the recent development of chemically complex metallic glasses, such as high entropy metallic glasses, with new tools that were not available or mature yet until recently, such as the state-of-the-art additive manufacturing technologies, high throughput materials design techniques and the methods for big data analyses (e.g. machine learning and artificial intelligence). We also discuss the recent use of metallic glasses in a variety of novel and important applications, from personal healthcare, electric energy transfer to nuclear energy that plays a pivotal role in the battle against global warming.

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Corrosion of stainless steel 316L in molten LiCl-Li2O-Li

Cited by 10 publications

References 40 publications

Effect of Metallic Li on the Surface Chemistry of Inconel 625 Exposed to Molten LiCl-Li₂O-Li

Effect of Metallic Li on the Surface Chemistry of Inconel 625 Exposed to Molten LiCl-Li₂O-Li

Corrosion Performance of Commercial Alloys and Refractory Metals in Conditions for Electrorefining of Spent Nuclear Fuels

Recent development of chemically complex metallic glasses: from accelerated compositional design, additive manufacturing to novel applications

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Corrosion of stainless steel 316L in molten LiCl-Li2O-Li

Cited by 10 publications

References 40 publications

Effect of Metallic Li on the Surface Chemistry of Inconel 625 Exposed to Molten LiCl-Li2O-Li

Effect of Metallic Li on the Surface Chemistry of Inconel 625 Exposed to Molten LiCl-Li2O-Li

Corrosion Performance of Commercial Alloys and Refractory Metals in Conditions for Electrorefining of Spent Nuclear Fuels

Recent development of chemically complex metallic glasses: from accelerated compositional design, additive manufacturing to novel applications

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Effect of Metallic Li on the Surface Chemistry of Inconel 625 Exposed to Molten LiCl-Li₂O-Li

Effect of Metallic Li on the Surface Chemistry of Inconel 625 Exposed to Molten LiCl-Li₂O-Li