The effect of sodium molybdate on the pitting corrosion of aluminum

被引：103

作者：

Emregül, KC ^{[1
]}

Aksüt, AA ^{[1
]}

机构：

[1] Ankara Univ, Fac Sci, Dept Chem, TR-06100 Ankara, Turkey

来源：

CORROSION SCIENCE | 2003年 / 45卷 / 11期

关键词：

aluminum; pitting corrosion; molybdate; EIS;

D O I：

10.1016/S0010-938X(03)00097-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of molybdates, in the concentration range 0.001-0.1 mol dm(-3), at pH 10, 7 and 3 has been studied using potentiodynamic and impedance methods. E-pp is seen to shift as much as 450 mV depending on the chloride ion concentration. The competitive adsorption of chloride and molybdate anions at the flawed regions followed by oxidation/reduction has been proposed as the passivating mechanism. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：2415 / 2433

页数：19

共 34 条

[1]

ABDRABBO MJ, 1985, CORROS SCI, V25, P69

[2]

ALSHAFFER AH, 1980, CORROS SCI, V20, P127

[3]

[Anonymous], 1966, ADV INORGANIC CHEM C

[4]

Augustynski J., 1978, PASSIVITY METALS, P989

[5]

BAIRAMOW AKH, 1985, CORROS SCI, V25, P79

[6]

BOUKAMP BA, 1989, MANUAL EQUIVCRT

[7] STUDIES ON THE PASSIVATION OF ALUMINUM IN CHROMATE AND MOLYBDATE SOLUTIONS [J].

BRESLIN, CB ;

TREACY, G ;

CARROLL, WM .

CORROSION SCIENCE, 1994, 36 (07) :1143-1154

[8] THE DEVELOPMENT OF CHEMICAL CONVERSION COATINGS ON ALUMINUM [J].

BROWN, GM ;

SHIMIZU, K ;

KOBAYASHI, K ;

THOMPSON, GE ;

WOOD, GC .

CORROSION SCIENCE, 1993, 35 (1-4) :253-256

[9] HIGH-POTENTIAL CATHODIC POLARIZATION OF OXIDIZED ALUMINUM ELECTRODES IN NEUTRAL AND ACID-MEDIA [J].

CABOT, PL ;

GARRIDO, JA ;

PEREZ, E ;

VIRGILI, J .

CORROSION SCIENCE, 1986, 26 (05) :357-369

[10] POTENTIODYNAMIC BEHAVIOR OF ALUMINUM IN PROPANEDIOIC ACID-SOLUTIONS [J].

CABOT, PL ;

CENTELLAS, FA ;

GARRIDO, JA ;

PEREZ, E .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 1987, 17 (04) :807-812

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