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Doodman, P., Faghihi-Sani, M., Barati, N., Afshar, A. (2014). Alumina nanostructured coating for corrosion protection of 316L stainless steel. International Journal of Nano Dimension, 5(1), 27-33. doi: 10.7508/ijnd.2014.01.004
P. Doodman; M. A. Faghihi-Sani; N. Barati; A. Afshar. "Alumina nanostructured coating for corrosion protection of 316L stainless steel". International Journal of Nano Dimension, 5, 1, 2014, 27-33. doi: 10.7508/ijnd.2014.01.004
Doodman, P., Faghihi-Sani, M., Barati, N., Afshar, A. (2014). 'Alumina nanostructured coating for corrosion protection of 316L stainless steel', International Journal of Nano Dimension, 5(1), pp. 27-33. doi: 10.7508/ijnd.2014.01.004
Doodman, P., Faghihi-Sani, M., Barati, N., Afshar, A. Alumina nanostructured coating for corrosion protection of 316L stainless steel. International Journal of Nano Dimension, 2014; 5(1): 27-33. doi: 10.7508/ijnd.2014.01.004

Alumina nanostructured coating for corrosion protection of 316L stainless steel

Article 5, Volume 5, Issue 1, Winter 2014, Page 27-33  XML PDF (757 K)
Document Type: Reasearch Paper
DOI: 10.7508/ijnd.2014.01.004
Authors
P. Doodman1; M. A. Faghihi-Sani1; N. Barati 2; A. Afshar3
1Department of Material Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
22Department of Materials Science and Engineering, Sharif University of Technology, Azadi Street, P.O. Box 11365-9466, Tehran, Iran
31Department of Material Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Abstract
Nanostructured alumina thin films were coated on stainless steel by Sol-Gel dip coating method. In order to prevent crack formation, Al2O3 films were kept in a solvent bath immediately after coating to reduce the rate of drying. Effects of calcination temperature and withdrawal speed on structural properties were analyzed using XRD and SEM. Topography and thickness of coatings were analyzed by AFM. Effects of the above parameters on anticorrosion performance of coats have been evaluated through electrochemical polarization technique. The results indicated that the optimum calcination temperature to achieve the best corrosion protection was 400ºC. The thickness of one time coating with 1mm/s withdrawal speed was about 146 nm.
Keywords
Alumina; Nanostructured coating; Sol gel; Dip-Coating; Corrosion resistance; Polarization
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