Inhibition Effects of Chromate, Phosphate, Sulfate, and Borate on Chloride Pitting Corrosion of Al

被引：3

作者：

Lee, Hochun ^{[1
]}

Isaacs, Hugh S. ^{[2
]}

机构：

[1] LG Chem Ltd, Battery R&D, Daejeon 305380, South Korea

[2] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA

来源：

JOURNAL OF THE KOREAN ELECTROCHEMICAL SOCIETY | 2008年 / 11卷 / 03期

关键词：

Aluminum; Pitting; Chloride; Inhibition; Cyclic voltammetry;

D O I：

10.5229/JKES.2008.11.3.184

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Inhibitive effects of chromate, phosphate, sulfate, and borate on chloride pitting corrosion of Al have been investigated using cyclic voltammetry. During the anodic oxide growth, the critical concentration of chloride for pit initiation decreased in the order: chromate > phosphate > sulfate > borate, and the maximum pitting current density increases in the reverse order: chromate < phosphate < sulfate < borate. The decreasing pitting current density was observed in the successive polarization cycles, which was attributed to the aging of Al oxides and field relaxation at oxide/solution interface.

引用

页码：184 / 189

页数：6

共 12 条

[1]

ANDERSON PJ, 1958, J APPL CHEM-USSR, V8, P352

[2] ENVIRONMENTAL FACTORS AFFECTING CRITICAL PITTING POTENTIAL OF ALUMINUM [J].

BOHNI, H ;

UHLIG, HH .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1969, 116 (07) :906-&

[3] Al2O3 film dissolution in aqueous chloride solutions [J].

Boxley, CJ ;

Watkins, JJ ;

White, HS .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2003, 6 (10) :B38-B41

[4] Formation of chromate conversion coatings on aluminum and its alloys - An in situ XANES study [J].

Isaacs, HS ;

Sasaki, K ;

Jeffcoate, CS ;

Laget, V ;

Buchheit, R .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (11) :B441-B447

[5]

Kaesche H., 1978, ELECTROCHEMICAL SOC, V935

[6] THE HYDRATION OF BARRIER OXIDE-FILMS ON ALUMINUM AND ITS INHIBITION BY CHROMATE AND PHOSPHATE IONS [J].

KONNO, H ;

KOBAYASHI, S ;

TAKAHASHI, H ;

NAGAYAMA, M .

CORROSION SCIENCE, 1982, 22 (10) :913-923

[7] Cyclic polarization behavior of aluminum oxide films in near neutral solutions [J].

Lee, HC ;

Xu, F ;

Jeffcoate, CS ;

Isaacs, HS .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2001, 4 (10) :B31-B34

[8] Dissolution of the native oxide film on polycrystalline and single-crystal aluminum in NaCl solutions [J].

Lee, S ;

White, HS .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (08) :B479-B483

[9] Effects of sulphate ion additives on the pitting corrosion of pure aluminium in 0.01 M NaCl solution [J].

Lee, WJ ;

Pyun, SI .

ELECTROCHIMICA ACTA, 2000, 45 (12) :1901-1910

[10] Effects of hydroxide ion addition on anodic dissolution of pure aluminium in chloride ion-containing solution [J].

Lee, WJ ;

Pyun, SI .

ELECTROCHIMICA ACTA, 1999, 44 (23) :4041-4049

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