XPS study of the surface chemistry of conventional hot-dip galvanised pure Zn, galvanneal and Zn-Al alloy coatings on steel

被引：138

作者：

Feliu, S ^{[1
]}

Barranco, V ^{[1
]}

机构：

[1] CENINCSIC Mat Engn Degradat & Durabil, Madrid 28040, Spain

来源：

ACTA MATERIALIA | 2003年 / 51卷 / 18期

关键词：

hot dipping; X-ray photoelectron spectroscopy; galvanised steel; galfan and galvanneal;

D O I：

10.1016/S1359-6454(03)00408-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study uses X-ray photoelectron spectroscopy (XPS) to analyse the outer surfaces of galvanised, galfan and galvanneal metallic coatings obtained by hot dipping. Considerable aluminium segregation towards the surface, principally as Al2O3, has been seen in all the studied coatings. The aluminium content on the surface was surprisingly similar to or even greater than the zinc content, which is the major element in the chemical composition of these coatings. The formation of Al2O3 seems to prevent the oxidation of the zinc in the metallic coating. (C) 2003 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：5413 / 5424

页数：12

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