The Use of Acoustic Emission for the Study and Monitoring of Localized Corrosion Phenomena

摘要: Acoustic Emission (AE) is a widely used non-destructive evaluation technique mainly during periodic testing to insure structural integrity of process plant equipment. AE can also be for continuous monitoring damage (initiation and propagation) due localized aqueous corrosion. For instance, the only NDE that allows detection localization propagating stress corrosion cracks (SCC). Moreover, SCC initiation detected by AE, in early stages compared other techniques. The correlation between parameters very useful understanding modelling crack propagation process. wear or abrasion corrosion, signals measurements provide valuable tool determine rate mechanical related kinetic energy flow particles. It gives complementary information techniques, such as transient electrochemical recording, more devoted purely corrosive conditions. appears promising studying modes pitting crevice attack.