POTENTIOSTATIC STUDY OF THE PASSIVATION OF ALUMINUM-ALLOYS IN AQUEOUS-ELECTROLYTE MEDIA

被引：11

作者：

ELBOUJDAINI, M ^{[1
]}

GHALI, E ^{[1
]}

BARRADAS, RG ^{[1
]}

GIRGIS, M ^{[1
]}

机构：

[1] CARLETON UNIV,DEPT CHEM,OTTAWA,ON K1S 5B6,CANADA

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 1995年 / 25卷 / 04期

关键词：

D O I：

10.1007/BF00249662

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The anodic oxidation of Al 5083 and Al 6061 has been studied by steady state and transient polarization measurements in deoxygenated chloride solution containing sulphate ions at 22 degrees C. Complementary to the electrochemical studies, techniques such as scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) were applied to investigate the morphological structure and chemical state of the electrode surface. The data suggests that a porous film of MgO and possibly Fe2O3 (for Al 6061) is formed on the electrode surface in addition to the aluminium oxide film (Al2O3). Some mechanisms for the growth of surface films on both alloys are discussed.

引用

页码：412 / 417

页数：6