Corrosion resistance of CU₂O and CuO on copper surfaces in aqueous media

Role of Conductive Corrosion Products in the Protectiveness of Corrosion Layers

“…They can be transposed immediately to the corrosion of steels by H 2 S. [5][6] Less obviously, this approach can be applied to the corrosion of copper in aerated water and to the specific role of the semiconducting compound Cu 2 O among the numerous copper corrosion products. 12 y With regard to the practical implications for CO 2 corrosion of steels, it will be necessary to make a thorough reassessment of the influence of steel composition and corrosive medium chemistry and to reexamine the effect of time and initial surface condition in laboratory tests.…”

“…Like Fe 3 C in CO 2 corrosion of steels, Cu 2 O is an electrically conducting compound and is known to play a decisive role in the protectiveness of corrosion layers on copper. 12 …”

Electrochemical studies of pitting corrosion of Cu–Fe alloy in sodium chloride solutions

“…The alloy tends to lose its passivity in the presence of these high sodium chloride concentration, which may be one or more of the reactions. [19,20] CuCl + Cl Or the occurrence of the autocatalytic reaction as [21,22] 2Cu + → Cu 2+ + Cu …… (16) this means that the presence of high Cl -ions concentration not only prevents the formation of the passive region but it acts in the dissolution of the alloy.…”

Study of two new aqueous alkaline Copper cleaning solutions and comparison with a conventional bath

“…6 for uninhibited Solution B and in the presence of RSL inhibitor at more active potentials. This phenomenon can be attributed to the formation of CUZO [8].…”