Improvement of the corrosion behavior of low carbon steel by laser surface alloying |
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Authors: | B. AbdolahiH.R. Shahverdi M.J. TorkamanyM. Emami |
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Affiliation: | a Tarbiat Modares University, Department of Materials Engineering P.O. Box 14115-143, Tehran, Iran b Iranian National Center for Laser Science and Technology (INLC), P.O. Box 14665-576, Tehran, Iran |
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Abstract: | 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. |
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Keywords: | Corrosion resistance Aluminized steel Laser surface alloying Low carbon steel |
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