Corrosion of zinc-magnesium coatings: Mechanism of paint delamination

被引：75

作者：

Hausbrand, Rene ^{[1
]}

Stratmann, Martin ^{[1
]}

Rohwerder, Michael ^{[1
]}

机构：

[1] Max Planck Inst Eisenforsch GmbH, D-40237 Dusseldorf, Germany

来源：

CORROSION SCIENCE | 2009年 / 51卷 / 09期

关键词：

Metal coatings; Zinc; Intermetallics; Passive films; Polymer coatings; POLYMERIC COATINGS; PART; STEEL; ALLOYS; FILMS; INTERFACE; KELVINPROBE; LAYERS; IRON; SALT;

D O I：

10.1016/j.corsci.2009.05.042

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Due to their promising corrosion properties, metallic coatings containing magnesium are currently widely investigated for use as protective coatings for steel sheet. Particularly, alloying zinc coatings with magnesium results in a remarkable improvement of the corrosion resistance of the painted system. While some aspects of this improvement have been understood, the progress of the corrosive degradation of the alloy coating/paint interface has not been reported in detail. In this paper, the delamination of a model polymer from the intermetallic MgZn(2) is described and a degradation mechanism proposed. Aspects for the design of stable interfaces are discussed. (C) 2009 Published by Elsevier Ltd.

引用

页码：2107 / 2114

页数：8

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