Effects of voltage on microstructure and properties of micro-arc oxidation ceramic coatings on AZ31B magnesium alloy under constant current–constant voltage operation mode
Anti-Corrosion Methods and Materials
ISSN: 0003-5599
Article publication date: 16 October 2023
Issue publication date: 20 November 2023
Abstract
Purpose
The purpose of this paper is to study the effects of voltage on microstructure and properties of micro-arc oxidation (MAO) ceramic coatings formed on AZ31B magnesium alloy under the constant current–constant voltage operation mode.
Design/methodology/approach
The wear and corrosion resistance of MAO coating on AZ31B magnesium alloy was studied by MAO in silicate electrolyte under constant current and constant voltage.
Findings
When the voltage is 360 V, the wear and corrosion resistance of AZ31B magnesium alloy is the best.
Originality/value
The wear and corrosion resistance of MAO coating on AZ31B magnesium alloy was studied by friction wear and electrochemical workstation.
Keywords
Acknowledgements
The financial aids of the National Natural Science Foundation of China under grant No. 51871031 and the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) are gratefully acknowledged.
Citation
Shu, Y.F., Jiang, B., Wang, C. and Song, R.G. (2023), "Effects of voltage on microstructure and properties of micro-arc oxidation ceramic coatings on AZ31B magnesium alloy under constant current–constant voltage operation mode", Anti-Corrosion Methods and Materials, Vol. 70 No. 6, pp. 513-521. https://doi.org/10.1108/ACMM-07-2023-2855
Publisher
:Emerald Publishing Limited
Copyright © 2023, Emerald Publishing Limited