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http://nopr.niscair.res.in/handle/123456789/7628
Title: | Corrosion inhibition of Al-Mg alloy by gentisic acid |
Authors: | Vrsalović, L Kliškić, M Gudić, S Smoljko, I |
Keywords: | Al-Mg alloy;Corrosion inhibition;Gentisic acid;Rotating disc electrode;Adsorption;Activation energy |
Issue Date: | Mar-2010 |
Publisher: | CSIR |
Abstract: | 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 at different electrode rotation rates and electrolyte temperatures. The results indicate that, the addition of gentisic acid inhibits corrosion of 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. |
Page(s): | 89-94 |
URI: | http://hdl.handle.net/123456789/7628 |
ISSN: | 0975-0991 (Online); 0971-457X (Print) |
Appears in Collections: | IJCT Vol.17(2) [March 2010] |
Files in This Item:
File | Description | Size | Format | |
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IJCT 17(2) 89-94.pdf | 156.77 kB | Adobe PDF | View/Open |
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