Passive films were grown on 304 L, 316 L and Duplex stainless steels by immersion at open circuit potential in solutions mimicking food and beverage industry environments. In acidic food stainless steel surfaces are covered by Cr rich passive films, and generalized dissolution occurs on their surface with consequent ions release into the electrolyte. In fatty food the concentration of released ions is significantly lower since generalized corrosion does not occur, but the loss on MnS inclusions strongly reduces the polarization resistance in this environment especially for 304 L due to its higher localized corrosion susceptibility with respect to the other grades.
Santamaria M., Tranchida G., Di Franco F. (2020). Corrosion resistance of passive films on different stainless steel grades in food and beverage industry. CORROSION SCIENCE, 173, 108778 [10.1016/j.corsci.2020.108778].
Corrosion resistance of passive films on different stainless steel grades in food and beverage industry
Santamaria M.;Tranchida G.;Di Franco F.
2020-01-01
Abstract
Passive films were grown on 304 L, 316 L and Duplex stainless steels by immersion at open circuit potential in solutions mimicking food and beverage industry environments. In acidic food stainless steel surfaces are covered by Cr rich passive films, and generalized dissolution occurs on their surface with consequent ions release into the electrolyte. In fatty food the concentration of released ions is significantly lower since generalized corrosion does not occur, but the loss on MnS inclusions strongly reduces the polarization resistance in this environment especially for 304 L due to its higher localized corrosion susceptibility with respect to the other grades.File | Dimensione | Formato | |
---|---|---|---|
2020_Corr Sci_Food.pdf
Solo gestori archvio
Descrizione: Articolo
Tipologia:
Versione Editoriale
Dimensione
2.97 MB
Formato
Adobe PDF
|
2.97 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.