Paper Titles
In Situ Observation of Initial Corrosion of AZ91 Alloy with Residual Stress in Wet-Dry Conditions Using Environmental Scanning Electron Microscope
p.537
Growth and Microstructure of Microarc Oxidation Coating on Al18B4w/AZ91 Mg Matrix Composite
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Effect of Pulsed High Energy Electron Beam on Surface Modification of AZ91 Magnesium Alloy
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Ion Implanted AZ31 Magnesium Alloy
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Rare Earth Conversion Coating of Magnesium Alloy AZ91D
p.555
Effect of Heat Treatment on Corrosion and Electrochemical Behaviors of Mg-3Nd-0.2Zn (wt.%) Magnesium Alloy
p.559
Effect of CeCl3-Containing Flux on Microstructure and Mechanical Properties of Mg Alloy Containing Rare Earth
p.563
Effect of Strontium on Mechanical Properties and Corrosion Resistance of AZ91D
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Application of Electrochemical Techniques to Characterization of the Corrosion Behaviors of GW63 Alloys
p.571

Rare Earth Conversion Coating of Magnesium Alloy AZ91D

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Abstract:

Rare earth chemical conversion coating of Mg alloys was studied. Corrosion and electrochemical behavior in chloride environment were investigated with tests of evolution of hydrogen and electrochemical measurements. The surface morphologies and composition of rare earth conversion coating were studied through SEM, EDAX and XPS. The results showed that rare earth conversion coatings could improve corrosion resistance and their corrosion resistance was comparable with that of chromate coatings (HB/Z5078278). This result was further proved by Polarization and EIS.

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Periodical:

Materials Science Forum (Volumes 546-549)

Pages:

555-558

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.546-549.555

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Online since:

May 2007

Authors:

Li Qun Bai, Di Li, Min Guo, Jing Xin

Keywords:

AZ91D Alloy, Chemical Conversion, Corrosion Resistance, Rare Earth (RE)

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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