Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1470990 | Corrosion Science | 2010 | 6 Pages |
Abstract
This work focuses on the corrosion of cast iron in a drinking water network. The study is performed in water and in a sandy soil saturated with the same water. In the presence of corrosion products, the inner wall surface shows a lower corrosion rate than the external wall. In the two media, impedance diagrams are described by a high-frequency loop characteristic of a protective corrosion layer and a diffusion impedance loop at low frequencies associated with oxygen diffusion. Different models involving mass transfer through a porous layer are suggested for the inner and the external corrosion layers.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
M. Sancy, Y. Gourbeyre, E.M.M. Sutter, B. Tribollet,