| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1468716 | Corrosion Science | 2014 | 7 Pages |
•The corrosion behaviour of Zn–Mg–Al alloy in marine environment is characterized.•Zn–Mg–Al alloy shows a better corrosion resistance than Zn.•Strong enhancement of NaZn4Cl(OH)6SO4·6H2O in the corrosion products is observed.•Al3+ and Mg2+ induced quenching effects in corrosion activity are described.
The corrosion behaviour of pure zinc and zinc–magnesium–aluminium alloy (ZMA) has been studied during 6 months of exposure in marine environment (Brest, France). The composition of corrosion products is analysed using infrared spectroscopy (FTIR), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). An improved corrosion resistance of ZMA is observed. This improvement is found to be connected to Mg2+ and Al3+ induced quenching of corrosion activity and to the enhancement of NaZn4Cl(OH)6SO4·6H2O in the formed corrosion product.
