Passivation of pure iron in alkaline solution containing silicate and sulphate -: Galvanostatic and Potentiostatic studies

被引：26
作者：
Amaral, ST
Müller, IL
机构：
[1] Univ Fed Rio Grande Sul, Inst Quim, BR-91501970 Porto Alegre, RS, Brazil
[2] Univ Fed Rio Grande Sul, Escola Engn, BR-90035190 Porto Alegre, RS, Brazil
来源：
CORROSION SCIENCE | 1999年 / 41卷 / 04期
关键词：
iron; passivity; anodic films; galvanostatic; potentiostatic;
D O I：
10.1016/S0010-938X(98)00148-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Electrochemical studies were carried out with an iron disk electrode using galvanostatic and potentiostatic techniques. A different electrochemical behavior of pure iron was observed in a solution containing silicate when compared to a solution without silicate, specially if il contains sulphate. It appears that silicate inhibits the film thickening while sulphate accelerates the him thickening, at pH 12. (C) 1999 Elsevier Science Ltd. All rights reserved.
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收藏
页码：747 / 758
页数：12
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