Influence of substrate composition on corrosion protection of sol-gel thin films on magnesium alloys in 0.6Â M NaCl aqueous solution

- Organic-inorganic sol-gel films on AZ31 and AZ61 magnesium alloys.
- Influence of the composition of the Mg-Al alloy on the sol-gel film degradation.
- Interaction of the sol films with oxides initially present on Mg-Al alloy surface.
- Effect of the corrosion products on the protection behaviour of the sol-gel film.