Cold flame-sprayed and oil-impregnated porous metallic coatings

G. Kalácska, L. Fazekas, R. Keresztes, A. Tóth, J. Szépvölgyi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Porous metallic coatings were prepared from three commercial alloy powders on 16MnCr5 steel by cold flame spraying. The mechanical characterisation of the coatings was performed by Vickers microindentation and debonding tests. Porosity was determined by image analysis of the optical micrographs of the polished cross-sections. The coatings were impregnated with motor oil 15W40 with the aim of preparing a lubricating system. The amounts of oil uptake and release by the coatings were determined under controlled conditions. The surfaces of the coatings were examined by X-ray photoelectron spectroscopy (XPS) and wettability studies. The amounts of oil uptake and release showed inverse relationship with the oxygen concentration at the surface and also with the Lifshitz-van der Waals component of surface energy. These relationships offer the possibility of controlling the lubrication properties of cold flame-sprayed and oil-impregnated porous metallic coatings.

Original languageEnglish
Pages (from-to)9532-9538
Number of pages7
JournalApplied Surface Science
Volume257
Issue number22
DOIs
Publication statusPublished - Sep 1 2011

Fingerprint

Oils
Coatings
Flame spraying
Steel
Debonding
Interfacial energy
Powders
Image analysis
Lubrication
Wetting
X ray photoelectron spectroscopy
Porosity
Oxygen

Keywords

  • Cold flame spray
  • Oil impregnation
  • Porous coating

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

Cite this

Cold flame-sprayed and oil-impregnated porous metallic coatings. / Kalácska, G.; Fazekas, L.; Keresztes, R.; Tóth, A.; Szépvölgyi, J.

In: Applied Surface Science, Vol. 257, No. 22, 01.09.2011, p. 9532-9538.

Research output: Contribution to journalArticle

Kalácska, G. ; Fazekas, L. ; Keresztes, R. ; Tóth, A. ; Szépvölgyi, J. / Cold flame-sprayed and oil-impregnated porous metallic coatings. In: Applied Surface Science. 2011 ; Vol. 257, No. 22. pp. 9532-9538.
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