Sol-gel derived TiO 2 coating on plasma nitrided 316L stainless steel

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • T. Fu
  • C. S. Wen
  • Y. M. Zhou
  • S. G. Ma
  • B. H. Dong
  • B. G. Liu

Detail(s)

Original languageEnglish
Pages (from-to)1402-1407
Journal / PublicationVacuum
Volume86
Issue number9
Publication statusPublished - 14 Mar 2012

Abstract

Titania film is coated on plasma nitrided 316L stainless steel by sol-gel method. Crystallization of titania as well as N loss and formation of Fe 2O 3 occurs during the annealing heat treatment. The titania film has short cracks within the grooves of plasma etched grain boundaries. With the increase of annealing temperature and duration, surface hardness of the samples is increased, but the toughness is decreased due to oxidization of the surface layer. The coating sample heat treated at 350 °C for 10 min and 450 °C for 10 min has better corrosion resistance than the nitrided stainless steel tested by the potentiodynamic polarization in 0.9% NaCl solution. Water contact angle of the titania film on the rough nitrided steel substrate decreases with UV irradiation treatment, reaching 17° after 3 h treatment. © 2012 Elsevier Ltd. All rights reserved.

Research Area(s)

  • Corrosion resistance, Hydrophilicity, Nitriding, Sol-gel, Stainless steel, TiO 2

Citation Format(s)

Sol-gel derived TiO 2 coating on plasma nitrided 316L stainless steel. / Fu, T.; Wen, C. S.; Lu, J. et al.
In: Vacuum, Vol. 86, No. 9, 14.03.2012, p. 1402-1407.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review