| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1468664 | Corrosion Science | 2015 | 10 Pages |
•Cerium-based conversion coating was post-treated by zinc phosphate conversion coating.•Epoxy coating was applied on the Ce and Ce–Zn surface treated steel substrates.•Surface morphology and composition of the surface treated samples were studied.•Anticorrosion and adhesion properties of the epoxy coating were studied.•Ce–Zn treated sample showed the highest adhesion and anticorrosion properties.
The surface morphology and composition of the cerium-based conversion coatings (Ce) were studied for the St-37 steel substrate which was post-treated in an ambient temperature zinc phosphate chemical treatment bath (Ce–Zn). Then, the epoxy/polyamide coating was applied on the substrates treated with Ce, Zn and Ce–Zn chemical treatments. The surface characterization and electrochemical investigations were made by scanning electron microscope (SEM), energy dispersive X-ray photoelectron spectroscopy (XPS), contact angle measuring device, pull-off test and electrochemical impedance spectroscopy (EIS). Results revealed that the epoxy coating applied on the Ce–Zn treated sample showed the highest adhesion and corrosion protection properties.
