Corrosion resistance of Cr/Ni alloy to a molten carbonate salt at various temperatures for the next generation high-temperature CSP plants

Encinas-Sánchez, V.; Miguel, María Teresa de; García-Martín, Gustavo; Lasanta, María Isabel; Pérez, F.J.

doi:10.1016/j.solener.2018.06.091

Cited by 34 publications

(9 citation statements)

References 37 publications

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“…Lasanta, M.T. de Miguel, and V. Encinás-Sanchez [42][43][44][45][46][47][48][49][50][51]. One of the most recent studies published was a study on the corrosion resistance of austenitic steel HR3C to a carbonate molten salt [52].…”

Section: Resultsmentioning

confidence: 99%

Bibliometric Map on Corrosion in Concentrating Solar Power Plants

2022

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Concentrating solar power (CSP), also known as solar thermal electricity (STE), is increasing its deployment worldwide. One of the potential ways to decrease costs in CSP plants is the improvement of corrosion resistance between the heat transfer fluid (HTF) and storage materials, and the materials used for pipes, tanks, containers, and receivers. This paper assesses the literature on this topic (290 publications) through a bibliometric analysis, identifying the trends of the research, the topics of most interest to researchers, and literature gaps. Most documents are from Spain, Germany, and the United States of America. Results show that the most recent approaches for corrosion migration are selective coatings and the use of nanoparticles to reduce corrosiveness. The use of nitrates is changing to other salts such as chloride mixtures and potassium compounds. In addition, the techniques used to evaluate corrosion results are dominated by scanning electron microscopy (SEM), X-ray diffraction (XRD), and electrochemical testing, but new dynamic techniques are starting to be used, representing the biggest gap that needs to be filled for the testing of components such as solar receivers.

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Section: Resultsmentioning

confidence: 99%

Bibliometric Map on Corrosion in Concentrating Solar Power Plants

2022

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“…de Miguel et al [221] studied the corrosion behaviour of HR3C steel in Li2CO3-Na2CO3-K2CO3 eutectics at 973 K and found that LiFeO2, LiCrO2, NiO and FeCr2O4 were arranged in different layers as main corrosion products. Encinas-Sánchez et al [222] further compared the corrosion behaviour of HR3C steel in Li2CO3-Na2CO3-K2CO3 eutectics at 973 K and 1073 K for 2000 h. The continuous transition from the rhombohedral to the cubic phase of LiFeO2 oxide layer was accelerated as the test temperature increased. Gallardo-González et al [223] determined the corrosion rate of ss316 in Li2CO3-Na2CO3-K2CO3 at 873 K and measured the corrosion rate to be 1.03-2.07 mm/yr.…”

Section: Inorganic Salts and Their Eutecticsmentioning

confidence: 99%

Medium- and high-temperature latent and thermochemical heat storage using metals and metallic compounds as heat storage media: A technical review

et al. 2020

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“…However, better dispatchability remains a crucial issue for increasing its competitiveness [ 3 ], and thermal energy storage could provide a realistic solution [ 4 ]. Although many studies are being performed with other salt mixtures [ 5 , 6 , 7 ], the most industrially used compound is 60 wt.% NaNO 3 /40 wt.% KNO 3 (Solar Salt ® ) [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Impedance Analysis for Corrosion Rate Monitoring of Sol–Gel Protective Coatings in Contact with Nitrate Molten Salts for CSP Applications

et al. 2023

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The protective behaviour of ZrO2-3%molY2O3 sol–gel coatings, deposited with an immersion coating technique on 9Cr-1Mo P91 steel, was evaluated with corrosion monitoring sensors using the electrochemical impedance spectroscopy technique. The tests were carried out in contact with solar salt at 500 °C for a maximum of 2000 h. The results showed the highly protective behaviour of the coating, with the corrosion process in the coated system being controlled by the diffusion of charged particles through the protective layer. The coating acts by limiting the transport of ions and slowing down the corrosive process. The system allowed a reduction in the corrosion rate of uncoated P91 steel. The estimated corrosion rate of 22.62 μm·year−1 is lower than that accepted for in-service operations. The proposed ZrO2-3%molY2O3 sol–gel coatings are an option to mitigate the corrosion processes caused by the molten salts in concentrated solar power plants.

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Corrosion resistance of Cr/Ni alloy to a molten carbonate salt at various temperatures for the next generation high-temperature CSP plants

Cited by 34 publications

References 37 publications

Bibliometric Map on Corrosion in Concentrating Solar Power Plants

Bibliometric Map on Corrosion in Concentrating Solar Power Plants

Medium- and high-temperature latent and thermochemical heat storage using metals and metallic compounds as heat storage media: A technical review

Electrochemical Impedance Analysis for Corrosion Rate Monitoring of Sol–Gel Protective Coatings in Contact with Nitrate Molten Salts for CSP Applications

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