Development of an automated underwater abrasion rig to determine galvanic effects during the growth and localised breakdown of surface films in CO2-containing solutions

Abstract

This is a repository copy of Development of an automated underwater abrasion rig to determine galvanic effects during the growth and localised breakdown of surface films in CO-containing solutions ₂ .

Investigation of the evolution of an iron carbonate layer and its effect on localized corrosion of X65 carbon steel in CO2 corrosion environments

“…For pitting corrosion in carbon steel, it is still not understood whether the pit exists as an entire anode with the surrounding area (normally covered by a film) acting as a cathode. There is some evidence that suggests galvanic interactions have an influence on pitting corrosion in these conditions, but it is not determined whether a discrete anode/cathode set up is the only mechanism responsible for propagation [6,7].…”

“…FeCO3 has been extensively studied by several researchers, including discussion of their kinetics and formation characteristics [17][18][19][20][21][22][23], galvanic effects and influence on pseudo-passivation behavior [6,7,24], as well as localized CO2 corrosion in presence of such films [25][26][27]. However, a detailed discussion in relation to the mechanism of localized corrosion has not been provided.…”