| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7893640 | Corrosion Science | 2018 | 11 Pages |
Abstract
The effect of Ca2+ on the corrosion behavior of 3Cr steel was investigated using immersion tests and electrochemical measurements. The results demonstrated that with an increase in Ca2+ concentration in the solution, the corrosion rate of 3Cr steel decreased and the Ca2+ content in the corrosion scale increased. Ca is involved in the formation of both the inner and outer corrosion scales of 3Cr steel. Polarization curves revealed that Ca2+ could enhance the pseudopassivation of 3Cr steel. EIS results demonstrated that Ca2+ can decrease the porosity of corrosion films. Additionally, Ca2+ could accelerate the precipitation of FeCO3 (CaxFe1âxCO3) by reducing its solubility and saturation degree.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Bei Wang, Lining Xu, Guozhang Liu, Minxu Lu,