A study of X100 pipeline steel passivation in mildly alkaline bicarbonate solutions using electrochemical impedance spectroscopy under potentiodynamic conditions and Mott–Schottky

Electrochemical study of passive films formed on welded lean duplex stainless steel

“…Recently, increasing research on the electronic properties of the passive films formed on stainless steels has been an important contribution to the understanding of the protective behavior against corrosion of these alloys . Depending upon the applied potential, the oxide film formed on stainless steel has n‐ or p‐type semiconducting properties .…”

Influence of Cl−ions on anodic polarization behaviour of API X80 steel in high potential/current density conditions in Na2SO4solution

“…25,26 The mechanism of passivation and the inuence of Cl À ions have been extensively studied. Some researchers believe that Cl À ions facilitate the dissolution of a passivate lm 27 and change its components. 28,29 Others declared that the lm is attacked through paths that are between nanocrystals and amorphous products.…”

Corrosion Behavior of API X100 Steel Material in a Hydrogen Sulfide Environment

“…A recent study [16] has shown that the chemical composition and microstructure of C-steel significantly influence its resistance to corrosion in wet H 2 S environments. However, the needs to increase the strength and reduce the corrosion rate of existing C-steel pipeline materials have inspired new interest in the quest for higher-strength steels [17,18]. Despite several contributions of different authors regarding a shared understanding of the corrosion of steel materials [19,20], few studies have investigated the corrosion in a sour environment [21,22], especially at low temperatures and with higher grades of carbon steel.…”