Zn/55Al coating microstructure and corrosion mechanism

被引：67

作者：

Moreira, AR

Panossian, Z

Camargo, PL

Moreira, MF

da Silva, IC

de Carvalho, JER

机构：

[1] Inst Technol Res, Div Met, Corros & Surface Treatment Lab, BR-05508901 Sao Paulo, Brazil

[2] Univ Sao Paulo, EPUSP, Dept Met & Mat Engn, BR-05508900 Sao Paulo, Brazil

[3] Inst Technol Res, Div Met, Foundry Lab, BR-05508901 Sao Paulo, Brazil

[4] Companhia Siderug Nacl, Res Dept, BR-27265610 Volta Redonda, RJ, Brazil

来源：

CORROSION SCIENCE | 2006年 / 48卷 / 03期

基金：

巴西圣保罗研究基金会;

关键词：

zinc; aluminium; alloy; metal coating; atmospheric corrosion;

D O I：

10.1016/j.corsci.2005.02.012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present work Zn/55Al coatings from different suppliers were studied. The results revealed the presence of at least two different phases in the interdendritic and in the dendritic areas that compose the coating. Analyses done in the cross section of test panels exposed for five years in six different atmospheres showed that the corrosion process begins in the aluminium-rich phase present in the interdendritic area. (C) 2005 Elsevier Ltd. All rights reserved.

引用

页码：564 / 576

页数：13