Title of article
Preparation and characterization of duplex PEO/MoC coatings on Mg–Li alloy
Author/Authors
Sun، نويسنده , , Pengpeng and Lu، نويسنده , , Yi and Yuan، نويسنده , , Yi and Jing، نويسنده , , Xiaoyan M. Zhang، نويسنده , , Milin، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2011
Pages
7
From page
4500
To page
4506
Abstract
A combined PEO and chemical conversion process was employed to fabricate duplex plasma electrolytic oxidation/molybdate conversion (PEO/MoC) coating on the surface of Mg–Li alloy. The microstructure and composition of the composite coatings were investigated by SEM, EDX, XRD and XPS. The anti-corrosion properties of duplex PEO/MoC coatings were evaluated by potentiodynamic polarization and EIS. The duplex PEO/MoC coating was composed of crystalline NaMgF3, Mg2SiO4, MoO3 and MgO. Spherical-like microparticles accumulated and dispersed uniformly on the surface of the PEO coating. The corrosion resistance for Mg–Li alloy was improved by using a combination of plasma electrolytic oxidation and chemical conversion.
Keywords
Mg–Li alloy , Duplex PEO/MoC coating , Plasma Electrolytic Oxidation
Journal title
Surface and Coatings Technology
Serial Year
2011
Journal title
Surface and Coatings Technology
Record number
1824424
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