Probing top-of-the-line corrosion using coupled multi-electrode array in conjunction with local electrochemical measurement

Abstract An experimental method has been developed for probing top-of-the-line corrosion (TLC) of pipeline steel based on the use wire beam electrode (WBE) in conjunction with local electrochemical measurements. Results show that location droplet, droplet retention time, water condensation rate and TLC could be well determined through macro-cell current mapping The precipitation scaling tendency FeCO 3 beneath were quantitatively estimated. micro-cell was significantly influenced by thickness condensed film protectiveness layer. discrepancy formation inside outside droplets driving force corrosion. in-situ measurement visualization processes kinetics using modified WBE conveniently used to facilitate understanding initiation propagation localized TLC.