Crevice corrosion and pitting detection on 304 stainless steel using electrochemical noise

被引：1
|
作者：
Conde, A
Williams, DE
机构：
[1] CSIC, CENIM, Corros & Protect Dept, Madrid 28040, Spain
[2] UCL, Dept Chem, London WC1H 0AJ, England
来源：
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION | 1999年 / 50卷 / 10期
关键词：
D O I：
10.1002/(SICI)1521-4176(199910)50:10<585::AID-MACO585>3.0.CO;2-Y
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Random fluctuations in current and voltage under free corroding conditions have been measured on austenitic steel 304 in sodium chloride solutions with different aggressiveness. The evolution of these fluctuations in time and frequency domains is analysed and related to the corrosion process on the surface electrode. When the metal is passive, the noise becomes white meanwhile during localised attack changes in the current and voltage can be found. Electrochemical noise (EN) measurements also showed the ability of the technique to distinguish between different corrosion processes such as pitting or crevice corrosion.
引用
收藏
页码：585 / 590
页数：6
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