Listen to corrosion at work - A newly developed versatile corrosion monitoring tool ready for plant application

摘要

The basic principle of a new approach of electrochemical noise (ECN) diagnostics, the Coulombs counting method, is outlined, and the wide range of application as an online-monitoring tool in technical corrosion systems is exemplified. It is shown that corrosion monitoring can be achieved with ECN sensors as simple as monitoring temperatures. A special feature of this method is that corrosion in crevices or under deposits can be investigated under real-time conditions. This allows to monitor the efficiency of mitigation measures, e.g. application of corrosion inhibitors, under crevice corrosion conditions. The new ECN diagnostic approach listens to the message of corroding systems and translates it into technically relevant information.