Improving corrosion protection of Al97Mg3 alloy in neutral sodium chloride solution by 1,2-bis(triethoxysilyl)ethane coating

被引：7

作者：

BinSabt, Mohammad H. ^{[1
]}

Galal, Ahmed ^{[1
]}

Al Kharafi, Faizah M. ^{[1
]}

Abditon, Maryam ^{[1
]}

机构：

[1] Kuwait Univ, Dept Chem, POB 5969, Safat 13060, Kuwait

来源：

APPLIED SURFACE SCIENCE | 2019年 / 465卷

关键词：

Aluminum-magnesium alloy; Corrosion protection; Silane coating; 3.5% NaCl; Pitting corrosion; PRETREATMENTS; ALUMINUM; LAYERS; SPECTROSCOPY; STABILITY; ADHESION; ENERGY; STEEL;

D O I：

10.1016/j.apsusc.2018.09.111

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：

We studied the protection of Al97Mg3 (Aluminium alloy 5754) against corrosion in neutral 3.5% NaCl solution by applying films of 1,2-bis(triethoxysilyl)ethane. The electrochemical characteristics of bare and coated alloy were evaluated using potentiodynamic polarization, electrochemical impedance spectroscopy (EIS). The surface morphologies and structures were assessed from field-emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), and energy-dispersive X-ray spectroscopy techniques (EDX) measurements. We used a simple immersion technique to achieve silane films formation over the alloy surface. The protection of the surface is due to the formation of a highly cross-linked and dense layer that developed at the interface between the silane film and the aluminum oxide.

引用

页码：143 / 153

页数：11

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