Use of electrochemical impedance spectroscopy for studying corrosion at overlapped joints

被引：21

作者：

Gonzalez, JA ^{[1
]}

Otero, E ^{[1
]}

Bautista, A ^{[1
]}

Almeida, E ^{[1
]}

Morcillo, M ^{[1
]}

机构：

[1] Ctr Nacl Invest Met, CSIC, E-28040 Madrid, Spain

来源：

PROGRESS IN ORGANIC COATINGS | 1998年 / 33卷 / 01期

关键词：

lap joints; AC impedance; electrochemical sensors; organic coatings; underfilm contamination;

D O I：

10.1016/S0300-9440(98)00009-5

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The potential of electrochemical impedance spectroscopy (EIS) as implemented with specially designed sensors for characterising the response to corrosion of overlapped metal joints is demonstrated. The EIS technique provides quantitative information on the effect of overlap in pre-painted metal sheets on the deterioration of the organic coating before any visual symptom becomes apparent. Examples of the estimation of the effects of underfilm contamination, nature of the substrate, and exposure conditions on the electrochemical parameters that govern corrosion in these situations (in relation to both the coating and the reactions that take place at the metal/coating interface) are provided. (C) 1998 Elsevier Science S.A.

引用

页码：61 / 67

页数：7

共 13 条

[1]

AMIRUDIN A, 1995, BRIT CORROS J, V30, P128, DOI 10.1179/000705995798114023

[2]

BABOIAN R, P 11 INT CORR C, V2

[3] Electrochemical Impedance Spectroscopy as a tool for investigating underpaint corrosion [J].