RT Journal Article
T1 Molten Salt Corrosion of Stainless Steels and Low-Cr Steel in CSP Plants
A1 Fernández, A. G.
A1 Lasanta Carrasco, María Isabel
A1 Pérez Trujillo, Francisco Javier
AB The 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.
PB Springer
SN 0030-770X
SN 1573-4889
YR 2012
FD 2012-08-08
LK https://hdl.handle.net/20.500.14352/114882
UL https://hdl.handle.net/20.500.14352/114882
LA eng
NO Fernández, 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-x
DS Docta Complutense
RD 8 abr 2025