Localised Measurements of pH and Dissolved Oxygen as Complements to SVET in the Investigation of Corrosion at Defects in Coated Aluminum Alloy

被引：43

作者：

Bastos, A. C. ^{[1
]}

Karavai, O. V. ^{[1
]}

Zheludkevich, M. L. ^{[1
]}

Yasakau, K. A. ^{[1
]}

Ferreira, M. G. S. ^{[1
]}

机构：

[1] Univ Aveiro, DECV CICECO, P-3810193 Aveiro, Portugal

来源：

ELECTROANALYSIS | 2010年 / 22卷 / 17-18期

关键词：

Corrosion; Microelectrodes; Oxygen reduction; pH; SVET; SCANNING ELECTROCHEMICAL MICROSCOPY; GALVANIC CORROSION; SPATIAL-DISTRIBUTION; PRECURSOR SITES; ZN/STEEL COUPLE; INHIBITION; CURRENTS; SENSOR; CERIUM;

D O I：

10.1002/elan.201000076

中图分类号：

O65 [分析化学];

学科分类号：

070302 [分析化学];

摘要：

This paper presents measurements of local pH and local oxygen reduction current performed to complement SVET (Scanning, Vibrating, Electrode Technique) in the characterization of the chemical environment near artificial defects on coated 2024-T3 aluminum alloy during corrosion and inhibition. The main purpose is to give examples on how micropotentiometry and microamperometry can add supplementary information to SVET, providing important insights for the understanding of corrosion mechanisms and inhibition processes necessary to develop effective self-healing coatings.

引用

页码：2009 / 2016

页数：8

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