Exfoliation corrosion in EN AW-7075 T6 | AlZn5.5MgCu | AA7075
| Numeric designation | EN AW-7075 T6 | AA7075 |
|---|---|
| Chemical designation | AlZn5,5MgCu |
| State | Exfoliation corrosion |
| Etching | 5 % NaOH |
Exfoliation corrosion is a layer-wise, selective corrosion, which in this case is intergranular and in sensitive areas preferably in planes parallel to the rolling direction. The planar, sheet-like flaking is caused by the voluminous corrosion products that form.
Corrosion Damages
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