Online monitoring of crevice corrosion with electrochemical noise

被引：18
|
作者：
Schmitt, G [1 ]
Moeller, K [1 ]
Plagemann, P [1 ]
机构：
[1] Iserlohn Univ Appl Sci, Lab Corros Protect, D-58644 Iserlohn, Germany
来源：
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION | 2004年 / 55卷 / 10期
关键词：
D O I：
10.1002/maco.200403812
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The time-related cumulated noise charges extracted from the noise signals between two "identical" crevice electrodes yield a direct quantitative easy-to-interpret information on time-related corrosion intensities in the crevice. A new software-assisted method of noise data evaluation allows a "counting of coulombs" exchanged between the system electrodes, the results of which directly correlate with the metal dissolution intensity in the crevice. The versatility of this "CoulCount" method is demonstrated in a failure analysis on the cause of crevice corrosion at spigots of automotive cooling water pumps.
引用
收藏
页码：742 / 747
页数：6
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