Conversion coating on magnesium alloy sheet (AZ31) by vanillic acid treatment: Preparation, characterization and corrosion behavior

Pazini Abatti, G.; Nunes Pires, A.T.; Spinelli, A.; Scharnagl, N.; da Conceicao, T.F.

Journalpaper

Conversion coating on magnesium alloy sheet (AZ31) by vanillic acid treatment: Preparation, characterization and corrosion behavior

Abstract

Herein we report the development and characterization of an eco-friendly protective layer of magnesium vanillate on the surface of a magnesium AZ31 alloy sheet, based on a treatment with 1.0 mmol L−1 vanillic acid aqueous solution. The coating composition was investigated by XPS and FTIR, and the corrosion behavior of the treated sheets was verified by potentiodynamic polarization and EIS. The results obtained show that the treatment improves corrosion protection and the adhesion of polymer coatings, being a promising treatment for corrosion protection of magnesium alloys.

Direct Link to Publication DOI Icon

DOI Link to Publication

URL: https://publications.hereon.de/id/35596/
Authors:Pazini Abatti, G., Nunes Pires, A.T., Spinelli, A., Scharnagl, N., da Conceicao, T.F.
Year:2018
In: Journal of Alloys and Compounds
Volume:738
Pages:224 - 232
Publisher:Elsevier
Type:Journalpaper
ISSN: 0925-8388
Cite as: Pazini Abatti, G.; Nunes Pires, A.T.; Spinelli, A.; Scharnagl, N.; da Conceicao, T.F.: Conversion coating on magnesium alloy sheet (AZ31) by vanillic acid treatment: Preparation, characterization and corrosion behavior. In: Journal of Alloys and Compounds. Vol. 738 (2018) 224 - 232. (DOI: /10.1016/j.jallcom.2017.12.115)