Synergistic Effect of 3-Amino-1,2,4-triazole-5-thiol and Cerium Chloride on Corrosion Inhibition of AA2024-T3

The inhibition of AA2024-T3 corrosion by the synergistic combination of 3-Amino-1,2,4-triazole-5-thiol (ATAT) and cerium chloride in sodium chloride solution is assessed. Analysis of electrochemical impedance spectroscopy results show improved corrosion inhibition for the inhibitor combination by in...

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Bibliographic Details
Published in:Journal of the Electrochemical Society 2019, Vol.166 (6), p.C185-C195
Main Authors: Udoh, Inime Ime, Shi, Hongwei, Liu, Fuchun, Han, En-Hou
Format: Article
Language:English
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Summary:The inhibition of AA2024-T3 corrosion by the synergistic combination of 3-Amino-1,2,4-triazole-5-thiol (ATAT) and cerium chloride in sodium chloride solution is assessed. Analysis of electrochemical impedance spectroscopy results show improved corrosion inhibition for the inhibitor combination by increased charge transfer resistance. Scanning vibrating electrode technique was utilized for corrosion current monitoring and quantification. X-ray photoelectron spectroscopy and time of flight secondary ion mass spectrometry were utilized to characterize the ATAT/Ce based film and to explain the mechanism of inhibition. The obtained results demonstrate a good potential of the inhibitor combination for improved suppression of corrosion processes.
ISSN:0013-4651
1945-7111
DOI:10.1149/2.0621906jes