The influence of sodium silicate on the corrosion behaviour of aluminium alloy 7075-T6 in 0.1 M sodium chloride solution was studied by open circuit potential (OCP) and electrochemical impedance spectroscopy (EIS) techniques. Scanning electron microscopy (SEM) was used to characterize the AA7075-T6 surface. Silicate can significantly reduce corrosion deterioration and the inhibition efficiency increases with the concentration of Na2SiO3. The corrosion inhibition mechanism involves the formation of a protective film over the alloy surface by adsorption of aluminosilicate anions from solution, as has also been suggested by others in literature.
Corrosion inhibition of aluminium alloy AA7075-T6 by sodium silicate in chloride solution / Rosalbino, F.; Scavino, G.; Ubertalli, G.. - ELETTRONICO. - (2022), pp. 1-18. [10.5281/zenodo.6543574]
Titolo: | Corrosion inhibition of aluminium alloy AA7075-T6 by sodium silicate in chloride solution | |
Autori: | ||
Data di pubblicazione: | 2022 | |
Citazione: | Corrosion inhibition of aluminium alloy AA7075-T6 by sodium silicate in chloride solution / Rosalbino, F.; Scavino, G.; Ubertalli, G.. - ELETTRONICO. - (2022), pp. 1-18. [10.5281/zenodo.6543574] | |
Abstract: | The influence of sodium silicate on the corrosion behaviour of aluminium alloy 7075-T6 in 0.1 M sodium chloride solution was studied by open circuit potential (OCP) and electrochemical impedance spectroscopy (EIS) techniques. Scanning electron microscopy (SEM) was used to characterize the AA7075-T6 surface. Silicate can significantly reduce corrosion deterioration and the inhibition efficiency increases with the concentration of Na2SiO3. The corrosion inhibition mechanism involves the formation of a protective film over the alloy surface by adsorption of aluminosilicate anions from solution, as has also been suggested by others in literature. | |
Handle: | http://hdl.handle.net/11583/2962780 | |
Appare nelle tipologie: | 5.15 Pubblicazione su portale |
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http://hdl.handle.net/11583/2962780