Influence of surface pre-treatment on the deposition and corrosion properties of hydrophobic coatings on a magnesium alloy

被引：55
|
作者：
Zhang, Yufen [1 ,2 ]
Blawert, Carsten [2 ]
Tang, Shawei [1 ]
Hu, Jin [1 ]
Mohedano, Marta [2 ]
Zheludkevich, Mikhail L. [2 ,3 ]
Kainer, Karl Ulrich [2 ]
机构：
[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
[2] Zentrum Mat & Kilstenforsch GmbH, Helmholtz Zentrum Geesthacht, Inst Mat Res, Max Plank Str 1, D-21502 Geesthacht, Germany
[3] Univ Aveiro, CICECO, Dept Mat & Ceram Engn, P-3810193 Aveiro, Portugal
来源：
CORROSION SCIENCE | 2016年 / 112卷
基金：
中国国家自然科学基金;
关键词：
Magnesium; EIS; Polarization; SEM; XRD; ONE-STEP PROCESS; SUPERHYDROPHOBIC SURFACE; BIOMEDICAL APPLICATION; THIN-FILMS; MG ALLOY; FABRICATION; RESISTANCE; COPPER; BIOMATERIALS; IMPLANTS;
D O I：
10.1016/j.corsci.2016.08.013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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.
引用
收藏
页码：483 / 494
页数：12
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