Wear behavior of flame-sprayed Al2O3 -TiO2 coatings on plain carbon steel substrates
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Date
2005
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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.
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Keywords
carbon steel , coating , friction , wear , Alumina , Carbon steel , Corrosion , Flame spraying , Friction , Microhardness , Optical microscopy , Substrates , Surface roughness , Titanium dioxide , Wear of materials , X ray diffraction analysis , Carbon steel substrates , Friction coefficient , Sprayed coatings