Novel composite films prepared by sol-gel technology for the corrosion protection of AZ91D magnesium alloy

被引：23

作者：

Zhang, Shiyan ^{[1
]}

Li, Qing ^{[1
]}

Fan, Jiaman ^{[1
]}

Kang, Wei ^{[1
]}

Hu, Wei ^{[2
]}

Yang, Xiaokui ^{[3
]}

机构：

[1] Southwest Univ, Sch Chem & Chem Engn, Chongqing 400715, Peoples R China

[2] Natl Engn Res Ctr Instrument Funct Mat, Chongqing 400700, Peoples R China

[3] Southwest Univ, Sch Mat Sci & Engn, Chongqing 400715, Peoples R China

来源：

PROGRESS IN ORGANIC COATINGS | 2009年 / 66卷 / 03期

关键词：

Magnesium alloy; Sol-gel process; Composite films; FT-IR; Corrosion; ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY; COATINGS; BEHAVIOR; RESISTANCE;

D O I：

10.1016/j.porgcoat.2009.08.011

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A novel composite films technology was developed to improve the anticorrosion performance of AZ91D magnesium alloy. The composite films were prepared via sol-gel method which is a simple application procedure within industry. The structure of xerogels and films, morphology of films were analyzed using thermo-gravimetric (TG) and differential thermal analysis (DTA), Fourier transformed infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and scan electron microscopy (SEM). The anticorrosion performance of the sol-gel coated and uncoated samples in 3.5 wt.% NaCl neutral solution had been evaluated by electrochemical tests. The results demonstrated that the composite films "Ce inner film/Mg outer film" exhibited better corrosion resistance. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：328 / 335

页数：8

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