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Open AccessArticle

The Corrosion Inhibition of AA6082 Aluminium Alloy by Certain Azoles in Chloride Solution: Electrochemistry and Surface Analysis

1
Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, Maribor 2000, Slovenia
2
Faculty of Natural Sciences, University of Tirana, Boulevard “Zogu I”, Tirana 1001, Albania
*
Author to whom correspondence should be addressed.
Coatings 2019, 9(6), 380; https://doi.org/10.3390/coatings9060380
Received: 15 May 2019 / Revised: 30 May 2019 / Accepted: 10 June 2019 / Published: 13 June 2019
(This article belongs to the Special Issue Anticorrosion Protection of Nonmetallic and Metallic Coatings)
The corrosion inhibition effect of five azole compounds on the corrosion of an AA6082 aluminium alloy in 5 wt.% NaCl solution at 25 and 50 °C was investigated using weight loss and electrochemical measurements. Only 2-mercaptobenzothiazole (MBT) showed a corrosion inhibition effect at both temperatures and was further studied in detail, including with the addition of potassium iodide as a possible intensifier. Surface analysis of the MBT surface layer was performed by means of attenuated total reflectance Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and time-of-flight secondary ion mass spectrometry techniques. The hydrophobicity of the MBT surface layer was also investigated. View Full-Text
Keywords: 2-mercaptobenzothiazole; aluminium alloy; AA6082; corrosion inhibitor; chloride solution; automotive industry 2-mercaptobenzothiazole; aluminium alloy; AA6082; corrosion inhibitor; chloride solution; automotive industry
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Xhanari, K.; Finšgar, M. The Corrosion Inhibition of AA6082 Aluminium Alloy by Certain Azoles in Chloride Solution: Electrochemistry and Surface Analysis. Coatings 2019, 9, 380.

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