Abstract
Direct observation of corrosion phenomena under special environments is still a challenge. Here, we reported on an in situ method for CO2 corrosion imaging under high pressure. The simultaneously recording of the surface morphology changes and Fe ions release can clearly reveal the detailed process of CO2 corrosion from active dissolution to film deposition and pitting attack. It indicated that the cooperative initiation of corrosion pits was triggered by local environmental variations relating to an initial active dissolution of the steel surface. The result also suggested that stereomicroscope be a suitable method for directly observing corrosion phenomena in high pressure conditions.
Get full access to this article
View all access options for this article.
