CORROSION OF ALUMINUM IN ACIDIC AND NEUTRAL SOLUTIONS

被引：227

作者：

LENDERINK, HJW

VANDERLINDEN, M

DEWIT, JHW

机构：

[1] Delft University of Technology, Laboratory of Materials Science, Division of Corrosion Technology and Electrochemistry, 2628 AL Delft

来源：

ELECTROCHIMICA ACTA | 1993年 / 38卷 / 14期

关键词：

CORROSION; ALUMINUM; IMPEDANCE MEASUREMENTS; EFFECT PH;

D O I：

10.1016/0013-4686(93)80329-X

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Polarization and impedance measurements were performed to study the corrosion behaviour of aluminium in acidic and nearly neutral solutions. The impedance diagram shows at least three time constants or semi-circles of which the size are dependent on the electrode potential. This indicates that at least three potential dependent processes are occurring. The capacitive time constant at high frequencies may be related to the oxide film itself. The second capacitive time constant at low frequencies can be attributed to the dissolution of the oxide film.

引用

页码：1989 / 1992

页数：4

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