THE CE-MO PROCESS FOR THE DEVELOPMENT OF A STAINLESS ALUMINUM

被引：85

作者：

MANSFELD, F

WANG, Y

SHIH, H

机构：

[1] Corrosion and Environmental Effects Laboratory, Department of Materials Science and Engineering, University of Southern California, Los Angeles

来源：

ELECTROCHIMICA ACTA | 1992年 / 37卷 / 12期

关键词：

CORROSION; SURFACE MODIFICATION; RARE EARTH SALTS; PITTING; IMPEDANCE SPECTROSCOPY;

D O I：

10.1016/0013-4686(92)85123-3

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A process for surface modification of Al-based materials is described which involves immersion in boiling Ce(NO3)3 and CeCl3 followed by anodic polarization in a deaerated molybdate solution. Each of these steps is carried out for 2 h. Al 6061-T6 treated in this manner did not show any sips of uniform or localized corrosion after immersion for 60 days in 0.5 N NaCl. A sample with a scratch in the modified surface also did not show any corrosion after 25 days in NaCl. Since this surface modification process produces exceptional corrosion resistance, it should be considered as a candidate for the replacement of chromate conversion coatings.

引用

页码：2277 / 2282

页数：6

共 16 条

[1] SURFACE MODIFICATION OF AL-ALLOYS AND A1-BASED METAL MATRIX COMPOSITES BY CHEMICAL PASSIVATION [J].

MANSFELD, F ;

LIN, S ;

KIM, S ;

SHIH, H .

ELECTROCHIMICA ACTA, 1989, 34 (08) :1123-1132

[2] PITTING AND PASSIVATION OF AL-ALLOYS AND AL-BASED METAL MATRIX COMPOSITES [J].

MANSFELD, F ;

LIN, S ;

KIM, S ;

SHIH, H .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1990, 137 (01) :78-82

[3] MINIMIZATION OF HIGH-FREQUENCY PHASE-SHIFTS IN IMPEDANCE MEASUREMENTS [J].

MANSFELD, F ;

LIN, S ;

CHEN, YC ;

SHIH, H .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1988, 135 (04) :906-907

[4] DETECTION OF PITTING WITH ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY [J].

MANSFELD, F ;

HONG, S .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1988, 135 (05) :1171-1172

[5]

MANSFELD F, 1988, WERKST KORROS, V39, P487

[6] CORROSION PROTECTION OF AL-ALLOYS AND AL-BASED METAL MATRIX COMPOSITES BY CHEMICAL PASSIVATION [J].

MANSFELD, F ;

LIN, S ;

KIM, S ;

SHIH, H .

CORROSION, 1989, 45 (08) :615-630

[7] PITTING AND SURFACE MODIFICATION OF SIC/AL [J].

MANSFELD, F ;

LIN, S ;

KIM, K ;

SHIH, H .

CORROSION SCIENCE, 1987, 27 (09) :997-1000

[8]

MANSFELD F, 1990, DAAL0386K0156 FIN RE

[9]

MANSFELD F, 1990, 11TH P INT CORR C FL

[10]

MANSFELD F, 1988, CORROSION 88

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