Inhibition of 5083 aluminium alloy and galvanised steel by lanthanide salts

被引：144

作者：

Arenas, MA

Bethencourt, M

Botana, FJ

de Damborenea, J

Marcos, M

机构：

[1] CSIC, CENIM, Dept Corros & Protecc, Ctr Nacl Invest Met, E-28040 Madrid, Spain

[2] Univ Cadiz, Fac Ciencias Mar, Dep Ciencia Mat & Ingn Met & Quim Inorgan, Cadiz 11510, Spain

[3] Univ Cadiz, Escuela Super Ingn, Dept Ingn Mecan & Diseno Ind, Cadiz 11003, Spain

来源：

CORROSION SCIENCE | 2001年 / 43卷 / 01期

关键词：

cerium salts; green inhibitor; galvanised steel; aluminium alloy; corrosion;

D O I：

10.1016/S0010-938X(00)00051-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Lanthanide salts ale being considered its an environmentally friendly alternative to the classic systems based on chromates. The inhibitor behaviour of CeCl3 has been studied for both AA5083 alloy and galvanised steel in aerated NaCl solutions. For AA5083, cerium appears as dispersed islands whilst in the galvanised steel samples, it is stochastically dispersed onto the metallic surface, forming a film. These differences can be interpreted in terms of the distribution of cathodic areas for each material. In the case of AA5083, Al-6-(Mn,Fe,Cr) acts as permanent cathodic site whilst permanent cathodic sites do not exist in the galvanised steel. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

收藏

页码：157 / 170

页数：14

相关论文

共 28 条

[1] Green inhibitors. Rare earth based systems [J].

Aballe, A ;

Bethencourt, M ;

Botana, FJ ;

Marcos, M ;

Perez, J ;

Rodriguez, MA .

REVISTA DE METALURGIA, 1997, 33 (06) :363-369

[2] Studies of the formation of cerium-rich protective films using x-ray absorption near-edge spectroscopy and rotating disk electrode methods [J].

Aldykiewicz, AJ ;

Davenport, AJ ;

Isaacs, HS .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (01) :147-154

[3] THE INVESTIGATION OF CERIUM AS A CATHODIC INHIBITOR FOR ALUMINUM-COPPER ALLOYS [J].

ALDYKIEWICZ, AJ ;

ISAACS, HS ;

DAVENPORT, AJ .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1995, 142 (10) :3342-3350

[4] CATIONIC-FILM-FORMING INHIBITORS FOR THE PROTECTION OF THE AA-7075 ALUMINUM-ALLOY AGAINST CORROSION IN AQUEOUS CHLORIDE SOLUTION [J].

ARNOTT, DR ;

HINTON, BRW ;

RYAN, NE .

CORROSION, 1989, 45 (01) :12-18

[5] Lanthanide compounds as environmentally-friendly corrosion inhibitors of aluminium alloys:: A review [J].

Bethencourt, M ;

Botana, FJ ;

Calvino, JJ ;

Marcos, M ;

Rodríguez-Chacón, MA .

CORROSION SCIENCE, 1998, 40 (11) :1803-1819

[6] The influence of the surface distribution of Al6(MnFe) intermetallic on the electrochemical response of AA5083 aluminium alloy in NaCl solutions [J].

Bethencourt, M ;

Botana, FJ ;

Calvino, JJ ;

Marcos, M ;

Pérez, J ;

Rodríguez, MA .

ELECTROCHEMICAL METHODS IN CORROSION RESEARCH VI, PTS 1 AND 2, 1998, 289-2 :567-573

[7] SCANNING AUGER MICROPROBE STUDY OF HOT-DIPPED REGULAR-SPANGLE GALVANIZED STEEL .1. SURFACE-COMPOSITION OF AS-PRODUCED SHEET [J].

BIBER, HE .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1988, 19 (06) :1603-1608

[8] SPANGLE FORMATION IN GALVANIZED SHEET STEEL COATINGS [J].

FASOYINU, FA ;

WEINBERG, F .

METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1990, 21 (03) :549-558

[9]

GALVELE JR, 1974, NACE 3, P580

[10] The influence of dichromate and cerium passivation treatments on the dissolution of Sn/Zn coatings [J].

Geary, M ;

Breslin, CB .

CORROSION SCIENCE, 1997, 39 (08) :1341-1350