Influence of Triethylamine Inhibitor Addition on the Sealing Process of 6063 Al Alloy

Hui Cheng Yu; Xiao Xiao Huang; Yan Yan Han; Dong Ping Wei

doi:10.4028/www.scientific.net/AMR.538-541.230

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 538-541Influence of Triethylamine Inhibitor Addition on...

Influence of Triethylamine Inhibitor Addition on the Sealing Process of 6063 Al Alloy

Abstract:

To improve the corrosion resistance of Al alloy, triethylamine (TEN) was added into the sealing solutions. Tafel polarization and electrochemical impedance spectroscopy(EIS) techniques were used to investigate the electrochemical behavior of sealing coatings formed in different concentrations of triethylamine(TEN). Compared with the coatings with D. I. water and the bare aluminum alloy, the polarization curves show that the sealing coatings formed in 5.0 – 7 .0 g.L-1 triethylamine (TEN) solutions have more positive corrosion potential (Ecorr) and pitting corrosion potential (Epit), and lower corrosion current density (icorr). Electrochemical parameters of EIS indicate that the sealing coatings have higher corrosion resistance. The electrochemical test results show the prepared sealing coatings have better corrosion resistance.

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Periodical:

Advanced Materials Research (Volumes 538-541)

Pages:

230-234

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.538-541.230

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Online since:

June 2012

Authors:

Hui Cheng Yu, Xiao Xiao Huang, Yan Yan Han, Dong Ping Wei

Keywords:

Aluminium Alloy, Coating, Corrosion Resistance, Ethylamine, Inhibitor

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