Influence of surface pre-treatment on the deposition and corrosion properties of hydrophobic coatings on a magnesium alloy
authors Zhang, YF; Blawert, C; Tang, SW; Hu, J; Mohedano, M; Zheludkevich, ML; Kainer, KU
nationality International
journal CORROSION SCIENCE
author keywords Magnesium; EIS; Polarization; SEM; XRD
keywords ONE-STEP ELECTRODEPOSITION; SUPERHYDROPHOBIC SURFACE; MG ALLOY; BIOMEDICAL APPLICATION; THIN-FILMS; FABRICATION; RESISTANCE; IMPLANTS; COPPER; BIOMATERIALS
abstract Calcium stearate based hydrophobic coatings were deposited on pre-treated Mg alloy substrates. The influence of four different pre-treatments including plasma electrolytic oxidation (as prepared and etched), anodizing and hydrothermal treatment was studied. The results indicate that the pre-treatments have strong influences on the morphology, thickness, and wettability of the coatings, without affecting their phase composition. The coating system based on the etched plasma electrolytic oxidation pretreatment shows the best corrosion resistance in a simulated body fluid. The superior protection effect is mainly related to the differences in the morphologies and thickness of the pre-treatment layers. (C) 2016 Elsevier Ltd. All rights reserved.
publisher PERGAMON-ELSEVIER SCIENCE LTD
issn 0010-938X
year published 2016
volume 112
beginning page 483
ending page 494
digital object identifier (doi) 10.1016/j.corsci.2016.08.013
web of science category Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering
subject category Materials Science; Metallurgy & Metallurgical Engineering
unique article identifier WOS:000385472100045
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journal impact factor 6.479
5 year journal impact factor 6.894
category normalized journal impact factor percentile 89.262
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