Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5367369 | Applied Surface Science | 2011 | 4 Pages |
In the present study, an integrated layer of iron aluminides of FeAl and Fe3Al was formed on the surface of a low carbon steel sheet by a two-step process. The first step was hot dipping of the steel in a molten aluminum pool and secondly laser surface processing using a pulsed Nd:YAG laser. The corrosion resistance of the coated specimens was evaluated by activation polarization and Tafel methods. The results show that laser processing of the aluminized steel leads to a considerable increase in its corrosion resistance compared to both uncoated and merely aluminized materials.
⢠Laser processing of hot dipped steel formed Fe3Al and FeAl intermetallics. ⢠Corrosion resistance of dipped steel increased 2 times after laser processing. ⢠Corrosion resistance of base steel increased 5 times after laser processing.