Formation of a hydrophobic and corrosion resistant coating on magnesium alloy via a one-step hydrothermal method

被引：52

作者：

Zheng, Tianxu ^{[1
,2
]}

Hu, Yaobo ^{[1
,2
]}

Zhang, Yuxin ^{[1
]}

Pan, Fusheng ^{[1
,2
]}

机构：

[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China

[2] Natl Engn Res Ctr Magnesium Alloys, Chongqing 400044, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2017年 / 505卷

关键词：

Magnesium alloy; Hydrophobic; Corrosion resistance; EIS; ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY; SUPERHYDROPHOBIC SURFACE; GRAPHENE; BEHAVIOR; PHOTOELECTRON; ADSORPTION; MECHANISM; CUO;

D O I：

10.1016/j.jcis.2017.05.092

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A hydrophobic coating was fabricated on the surface of magnesium alloy using a simple one-step hydrothermal method with the use of environmentally friendly agent. Scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and contact angle test were used to characterize the surfaces. Corrosion behavior in a 3.5 wt.% NaCI solution was evaluated using OCP time curves test, potentiodynamic polarization test and EIS analysis. The findings show that the substrate is covered by the coating of magnesium hydroxide and magnesium stearate, reaching a contact angle of around 146 degrees. Corrosion behavior show huge improvement, the progress with increase of treatment time could be related to the increased growth rate of coating. (C) 2017 Elsevier Inc. All rights reserved.

引用

页码：87 / 95

页数：9

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