Plasma sprayed metal-ceramic coatings and modification of their structure with pulsed electron beam irradiation

O. P. Solonenko, V. E. Ovcharenko, Yu F. Ivanov, A. A. Golovin

Research output: Contribution to journalReview article

12 Citations (Scopus)

Abstract

Composite powder obtained from mechanically crushed titanium carbide-metal binder cermet compacts deserves special mention for plasma spraying of wear-resistant coatings. However, cermet coatings sprayed using this powder have comparatively high porosity. The porosity causes the mechanical strength of the coating to largely deteriorate, and it also lowers the strength of the bond between the coating and the substrate. Computational and physical experiments were performed in this area to reveal the possibilities offered by pulsed electron beam irradiation for structural modification of 70 vol.%TiC-(Ni-Cr) powder coatings. The authors evaluated optimal values of process parameters for suitability in implementing a controlled thermal treatment of coatings under conditions of solid-liquid interaction of components in the cermet composition with each other and with the steel substrate. Evolution of the structure and physical properties of the cermet coatings under rapid heating and following cooling in a wide range of temperatures typical of pulsed irradiation conditions have been examined.

Original languageEnglish
Pages (from-to)927-938
Number of pages12
JournalJournal of Thermal Spray Technology
Volume20
Issue number4
DOIs
Publication statusPublished - 1 Jun 2011

Fingerprint

Cermet Cements
metal coatings
Metal coatings
ceramic coatings
Ceramic coatings
Cermets
Electron beams
Irradiation
electron beams
Plasmas
coatings
Coatings
irradiation
Powders
Porosity
Titanium carbide
Powder coatings
Plasma spraying
Sprayed coatings
Steel

Keywords

  • finite-element modeling
  • metal-ceramic powder
  • plasma coating
  • post-treatment
  • pulsed electron beam
  • splat

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Plasma sprayed metal-ceramic coatings and modification of their structure with pulsed electron beam irradiation. / Solonenko, O. P.; Ovcharenko, V. E.; Ivanov, Yu F.; Golovin, A. A.

In: Journal of Thermal Spray Technology, Vol. 20, No. 4, 01.06.2011, p. 927-938.

Research output: Contribution to journalReview article

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