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Corrosion inhibition of Al-Mg alloy by gentisic acid (CROSBI ID 164582)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Vrsalović, Ladislav ; Kliškić, Maja ; Gudić, Senka ; Smoljko, Ivana Corrosion inhibition of Al-Mg alloy by gentisic acid // Indian journal of chemical technology, 17 (2010), 2; 89-94

Podaci o odgovornosti

Vrsalović, Ladislav ; Kliškić, Maja ; Gudić, Senka ; Smoljko, Ivana

engleski

Corrosion inhibition of Al-Mg alloy by gentisic acid

Gentisic acid was studied for possible use as an Al-2.5Mg alloy corrosion inhibitor in a 0.5 mol dm-3 NaCl solution. Investigations were performed on a rotating disc electrode in a quiescent solution and at different electrode rotation rates and electrolyte temperatures. The results indicate that the addition of gentisic acid inhibits corrosion of the Al-2.5Mg alloy, and the inhibition efficiency increases with increasing inhibitor concentration but decreases with increasing electrode rotation rate and electrolyte temperature. The investigated compound acts as a cathodic-type inhibitor and the inhibition is ascribed to the adsorption of the inhibitor onto the electrode surface. The adsorptive behaviour of gentisic acid follows the Freundlich adsorption isotherm.

Al-Mg alloy ; corrosion inhibition ; gentisic acid ; rotating disc electrode ; adsorption ; activation energy

Glavni autor rada: Ladislav Vrsalović

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Podaci o izdanju

17 (2)

2010.

89-94

objavljeno

0971-457X

0975-0991

Povezanost rada

Kemijsko inženjerstvo

Indeksiranost