journal article·2018-09-12

Enhanced Wear Performance of Hybrid Epoxy-Ceramic Coatings on Magnesium Substrates

Junjie Yang, Shichun Di, Carsten Blawert, Sviatlana V. Lamaka, Linqian Wang, Banglong Fu, Pingli Jiang, Li Wang, Mikhail L. Zheludkevich

ACS Applied Materials & Interfaces· Volume 10· Issue 36
Publisher page

Abstract

Epoxy-based polymer was deposited as sealing agent on porous anodized coatings prepared by plasma electrolytic oxidation (PEO) to construct multilayered "soft-hard" coatings on Mg substrates. Different thicknesses and microstructures of the top epoxy layer were achieved by employing different dip-coating strategies. Atomic force microscopy, pull-off tests, and nanoindentation tests were conducted to study the surface roughness, the adhesion strength of the epoxy layer, and the mechanical properties of each component in the hybrid coating system. The micropores and other defects on the anodized layers were sealed by the epoxy polymer, which decreased the surface roughness. The dominant abrasive wear behavior of blank PEO coatings was significantly reduced by the epoxy layers, and the wear mechanism of the hybrid coatings was proposed considering both the microstructure of the hybrid coatings and the mechanical properties of the different components in the hybrid system.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Magnesium Alloys: Properties and Applications · Corrosion Behavior and Inhibition · Tribology and Wear Analysis

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Mechatronics Engineering, Harbin Institute of Technology, West Dazhi Road 92, 150001 Harbin, P. R. China

Faculty of Engineering, University of Kiel, Kaiserstrasse 2, 24143 Kiel, Germany

Funding

Helmholtz-Gemeinschaft · China Scholarship Council

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