Alumina nanostructured coating for corrosion protection of 316L stainless steel
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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.
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0010-938X/$ see front matter 2013 Elsevier Ltd. All rights reserved. http://dx.doi.org/10.1016/j.corsci.2013.07.045 ⇑ Corresponding author. Address: Faculty of Mechanical Engineering and Naval Architecture, Departmet of Materials, Ivana Lučića 5, 10000 Zagreb, Croatia. Tel.: +385 1 616 8313; fax: +385 1 615 7126. E-mail address: [email protected] (L. Ćurković). Lidija Ćurković a,⇑, Helena ...
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Journal title
volume 5 issue 1
pages 27- 33
publication date 2014-03-01
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