The corrosion potential fluctuations of aluminium alloy AA 6351 electrodes in 0.5 M chloride solutions were recorded both in the absence and in the presence of the following inhibitors: 2-mercapto-pyrimidine, sodium molybdate and sodium nitrate. The corresponding spectral density plots, calculated over a wide frequency range, are discussed in order to evaluate the possibility of finding the mechanism of action of the additives, by analyzing the electrochemical noise. As a reference, the polarization curve of the alloy in the various solutions are reported.

Evaluation of corrosion inhibitors by electrochemical noise analysis

MONTICELLI, Cecilia;BRUNORO, Giancarlo;FRIGNANI, Alessandro;TRABANELLI, Giordano
1992

Abstract

The corrosion potential fluctuations of aluminium alloy AA 6351 electrodes in 0.5 M chloride solutions were recorded both in the absence and in the presence of the following inhibitors: 2-mercapto-pyrimidine, sodium molybdate and sodium nitrate. The corresponding spectral density plots, calculated over a wide frequency range, are discussed in order to evaluate the possibility of finding the mechanism of action of the additives, by analyzing the electrochemical noise. As a reference, the polarization curve of the alloy in the various solutions are reported.
1992
Monticelli, Cecilia; Brunoro, Giancarlo; Frignani, Alessandro; Trabanelli, Giordano
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/462155
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