Wear behavior of flame-sprayed Al2O3 -TiO2 coatings on plain carbon steel substrates

Kusoglu I. M., ÇELİK E., Cetinel H., Ozdemir I., Demirkurt O., Onel K.

Surface and Coatings Technology, vol.200, no.1-4 SPEC. ISS., pp.1173-1177, 2005 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 200 Issue: 1-4 SPEC. ISS.
  • Publication Date: 2005
  • Doi Number: 10.1016/j.surfcoat.2005.02.219
  • Journal Name: Surface and Coatings Technology
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1173-1177
  • Keywords: Al2O3-TiO2, Corrosion, Flame spray, Friction coefficient, Wear
  • Ankara Yıldırım Beyazıt University Affiliated: No

Abstract

In this study, Al2O3-TiO2 powders were sprayed using a flame-spray technique after a NiCrMo bond layer was deposited on plain carbon steel substrate. The produced layers were characterized by X-ray diffraction (XRD), optical microscope, scanning electron microscope (SEM) including energy-dispersive spectroscopy (EDS), surface roughness and microhardness tester. Friction and wear behaviour of the coatings were also evaluated in the present study. The Al2O3-TiO2 coatings were subjected to sliding wear against AISI 303 stainless steel counter body under dry and acidic environments. A pin-on-plate type apparatus was used with normal loads in the range of 49-129 N. Wear resistance of the coatings in acid environment is better than that in dry conditions. © 2005 Elsevier B.V. All rights reserved.