| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1470289 | Corrosion Science | 2010 | 12 Pages |
Abstract
This work aims to characterize corrosion products formed on copper samples exposed to synthetic rainwater of Rio de Janeiro and São Paulo. XRD and XPS were employed to determine their composition, while electrochemical techniques were used to evaluate their protective properties. XRD and XPS indicated the thickening of the corrosion layer with time. Electrochemical results showed that the protectiveness of the corrosion layer depends on the solution composition. Based on our findings a corrosion mechanism for copper in simulated rainwater is proposed where the role of NH4+ ions in the cuprite layer partial regeneration is taken into account.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
R.P.B. Hernández, Z. Pászti, H.G. de Melo, I.V. Aoki,