Fernández, A. G.Lasanta Carrasco, María IsabelPérez Trujillo, Francisco Javier2025-01-172025-01-172012-08-08Fernández, A.G., Lasanta, M.I. & Pérez, F.J. Molten Salt Corrosion of Stainless Steels and Low-Cr Steel in CSP Plants. Oxid Met 78, 329–348 (2012). https://doi.org/10.1007/s11085-012-9310-x0030-770X1573-488910.1007/s11085-012-9310-xhttps://hdl.handle.net/20.500.14352/114882The corrosive effects of 60 % NaNO3/40 % NaNO3 have been tested at 390 and 550 °C, in order to simulate the working conditions in two principal concentrated solar power (CSP) plants, on stainless steel (AISI 304, 430) and on a low-Cr alloy steel (T22) containing 2.25 % Cr. The corrosion rates were determined by gravimetric tests, measuring the weight gain during 2,000 h, identifying the corrosion products via scanning electron microscopy (SEM) and X-ray diffraction (XRD). Thereby, Fe2O3 and Fe3O4 were the most prominent products formed from the tests performed at 390 °C, being observed also the formation of some stable compounds due to the impurities of the salt, as magnesium ferrite (MgFe2O4) and NaFeO2. The study at 550 °C of stainless steels revealed a better behavior under corrosive environments than T22 steel, identifying the formation of FeCr2O4 protective spinels mainly. To complete the corrosion tests, thermo-physical studies were carried out in binary mixture, using DSC and TGA. Also the most important parameters of the salt before and after corrosion test were tested.engAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/journal articlehttps://doi.org/10.1007/s11085-012-9310-xhttps://link.springer.com/article/10.1007/s11085-012-9310-xrestricted access669.14:620.193CorrosionConcentrated solar power plantsMolten saltDifferential scanning calorimeterMateriales3303 Ingeniería y Tecnología Químicas3312 Tecnología de Materiales2213 Termodinámica