Research on Tribological Property of Micro-Arc Oxidation Film on AZ91D Magnesium Alloy

Abstract:

Magnesium alloys were treated by micro-arc oxidation at a constant applied current density. The friction and wear properties were investigated by optical microscope and universal friction and wear tester in 3.5%NaCl solution. The result reveals that the film formed by micro-arc oxidation enhances the corrosion resistance of the magnesium alloys. The Ecorr of micro-arc oxidation film improved 94mV than the Ecorr of magnesium alloys matrix. Wear resistance of the film was weakened in 3.5%NaCl solution. The wear mechanism of film depends on the load. Abrasive wear was predominant at low load. Peeling wear was predominant at high load, which result from damage of the film adhesion.

• Periodical: Applied Mechanics and Materials (Volumes 121-126)
• Pages: 355-358
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.121-126.355
• Online since: October 2011
• Authors: Bai Yang Lou, Jie Zhao, Zhi Heng Zheng, Ping Liu
• Keywords: Corrosion, Friction, Magnesium Alloy, Wear

References

[1] H. Chen, J.M. Hao: Study of the Technics of Micro-arc Oxidation for AZ91D Die-casting Magnesium Alloys, Foundry Technology, 2009, 30(5): 657-660.

[2] Y. Zhang, B.P. Meng, G. Y Yang: Microarc Oxidation Technology of Magnesium Alloy, Light Alloy Fabrication Technology, 2004, 32(10): 23-25.

[3] W. J Huang, M Liu: Study on Tribological Property of Micro-arc Oxidation Coating on Magnesium Alloy, Hot Working Technology, 2007, 36(2): 44-46.

[4] W. Shang, B.Z. Chen, X.C. Shi, Y. Chen, X. Xiao: Electrochemical corrosion behavior of composite MAO/sol–gel coatings on magnesium alloy AZ91D using combined micro-arc oxidation and sol–gel technique, Journal of Alloys and Compounds, 2009, 474: 541-545.

DOI: 10.1016/j.jallcom.2008.06.135

[5] J. Guo, J. Liang, F.Y. Yan, Q.J. Xue: Tribological Behavior of Three Microarc Oxidation Coatings on Magnesium Alloy with Oil Lubrication at Elevated Temperature, Chemical Research, 2009, 20(3): 59-63.

[6] J.H. Peng, F.L. Huang, G. Liu, W.F. Li, R.S. D, X.L. Tang: Dry sliding wear behavior of AZ91D Mg alloy with micro-arc-oxidation coating, The Chinese Journal of Nonferrous Metals, 2009, 19(6): 981-985.

[7] P. Bala Srinivasan, R. Zettler, C. Blawert, W. Dietzel: A study on the effect of plasma electrolytic oxidation on the stress corrosion cracking behavior of a wrought AZ61 magnesium alloy and its friction stir weldment, Materials Characterization, 2009, 60: 389-396.

DOI: 10.1016/j.matchar.2008.10.010

[8] D.D. Yang: Structure and Properties of Modified Layers Used in Biology and Medical Applications by Micioarc Oxidation on Magnesium Alloy, Harbin Institute of Technology, (2007).

[9] G.J. Li, L. Li, C.Q. Xu: Research Progress of Micro-arc Oxidation Ceramic Coating on Magnesium Alloy, Hot Working Technology, 2008, 37(18): 94-96.