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Hot Corrosion Behavior of Slurry Sprayed Aluminide Coatings in a Simulated Dyna...
Audigié, Pauline; Rodríguez Catela, Sergio; Agüero, Alina; Pedrosa, Fátima; Paiva Luís, Teresa; Cunha Diamantino, TeresaABSTRACT: One of the key challenges associated with the use of molten salts in Concentrated Solar Power (CSP) plants is to reduce or even suppress corrosion phenomena occurring at elevated temperatures. Molten nitrate mixtures are currently seen as the most viable storage medium for Thermal Energy Storage. But the upper temperature limit of the currently used “Solar Salt” is restricted by salt decomposition at ...
Comparison of descaling methods to study the corrosion kinetics of ferritic ste...
Audigié, Pauline; Rodríguez Catela, Sergio; Agüero, Alina; Pedrosa, Fátima; Paiva Luís, Teresa; Cunha Diamantino, TeresaABSTRACT: T91 ferritic-martensitic steel was exposed to Li, Na and K molten carbonates at 650??C under dynamic conditions up to 1000 h. After testing, three descaling methods, two from the ISO8407 and one from the ISO17245 stan-dards were applied to remove the corrosion products and determine the corrosion rates. The two ISO8407 methods were more appropriate although the procedure required several steps to full...
Hot Corrosion Behavior of Slurry Sprayed Aluminide Coatings in a Simulated Dyna...
Audigié, Pauline; Rodríguez Catela, Sergio; Agüero, Alina; Pedrosa, Fátima; Paiva Luís, Teresa; Cunha Diamantino, TeresaABSTRACT: One of the key challenges associated with the use of molten salts in Concentrated Solar Power (CSP) plants is to reduce or even suppress corrosion phenomena occurring at elevated temperatures. Molten nitrate mixtures are currently seen as the most viable storage medium for Thermal Energy Storage. But the upper temperature limit of the currently used “Solar Salt” is restricted by salt decomposition at ...
A direct comparative study of the corrosion behaviour of Si-free and Si-rich sl...
Audigié, Pauline; Rodríguez Catela, Sergio; Agüero, Alina; Pedrosa, Fátima; Paiva Luís, Teresa; Cunha Diamantino, TeresaABSTRACT: This study is focused on the evaluation of the hot corrosion behaviour of two low-cost slurry aluminide coatings with and without Si addition deposited on ferritic-martensitic steels, comparing them with uncoated steel, after 1000-h of exposure to Li, K, Na molten carbonates at 650ºC, under static and dynamic conditions with a high linear velocity (1.3 m/s). Both coatings evidenced a high performance ...
Estudio de la resistencia frente a la corrosión por nitratos fundidos de recubr...
Rodríguez, Sergio; Audigié, Pauline; Agüero, A.; Pedrosa, Fátima; Paiva Luís, Teresa; Cunha Diamantino, TeresaRESUMEN: Recubrimientos de slurry de aluminio depositados sobre P91, un acero ferrítico-martensítico con un contenido de 9 % en peso de cromo, fueron estudiados y comparados con el material sin recubrir tras ser expuestos por inmersión en la Sal Solar (60 wt.% NaNO3 – 40 wt.% KNO3) a 580 ºC hasta 1000 h bajo condiciones dinámicas. Dos recubrimientos de aluminuros de diferente microestructura resultantes de la r...