Titania nanostructured coating for corrosion mitigation of stainless steel

  • Nastaran Barati
  • Mohammad Ali Faghihi Sani
  • Zahra Sadeghian
  • Hadi Ghasemi
Nanoscale and Nanostructured Materials and Coatings
  • 118 Downloads

Abstract

Anatase nanostructured coating has been prepared on 316 L stainless steel by sol-gel dip coating. The topography of the coatings surface has been analyzed using atomic force microscopy. The anticorrosion performance of the coatings has been evaluated using polarization curves. Effects of calcination temperature, withdrawal speed and times of coating on corrosion protection have been studied. The results showed calcination temperature of 400°C and withdrawal speed of 10 cm/min are desirable conditions to achieve high corrosion protection of 316 L stainless steel in chloride containing environments. Coatings with 3 times exhibit better resistance against corrosion in 0.5 molar NaCl solutions. This protection against corrosion arises from photocatalytic properties of anatase nanoparticles.

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Copyright information

© Pleiades Publishing, Ltd. 2014

Authors and Affiliations

  • Nastaran Barati
    • 1
  • Mohammad Ali Faghihi Sani
    • 1
  • Zahra Sadeghian
    • 2
  • Hadi Ghasemi
    • 3
  1. 1.Department of Materials Science and EngineeringSharif University of TechnologyTehranIran
  2. 2.Department of GasResearch Institute of Petroleum Industry (RIPI)TehranIran
  3. 3.Department of Mechanical EngineeringMassachusetts Institute of Technology Massachusetts AvenueCambridgeUK

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