Aluminum Oxidation Contamination

Aluminum oxidation contamination, it forms rapidly from air exposure where oxygen reacts with surface and creates thin oxide layer. This layer adheres strongly and stays compact, thus self-limits further corrosion unlike expansive rust that flakes away. On pure aluminum, uniformity holds, but alloys show porosity so embeds particles deeply and resists removal stubbornly; challenges arise from tight bond and quick regrowth after mechanical or chemical attempts. Laser cleaning succeeds, precise energy ablates oxide selectively and vaporizes it fast, surface already exhibits cleanliness without residues thus prevents reformation.