Detail publikace

Vplyv dvojitého pretavenia elektrónovým lúčom na mikroštruktúru kovového povlaku pripraveného pomocou HVOF a CGDS techniky

KRAJŇÁKOVÁ, P. DLOUHÝ, I. ČÍŽEK, J. ČUPERA, J. SHVAB, R.

Český název

Vplyv dvojitého pretavenia elektrónovým lúčom na mikroštruktúru kovového povlaku pripraveného pomocou HVOF a CGDS techniky

Anglický název

Effect of Double Electron beam Remelting on Microstructure of HVOF and CGDS Bond Coat

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

en

Originální abstrakt

This work focuses to investigate the influence of the parameters used in electron beam (EB) remelting including the effect of double remelting of CoNiCrAlY coatings fabricated on Nickel based super alloy substrates by using the high velocity oxygen-fuel (HVOF) and cold gas dynamic spraying (CGDS) methods. The microstructure of as sprayed and remelted coatings were investigated by scanning electron microscopy and the phase analysis by X-ray diffraction (XRD). The results obtained show that there are advantages at using the pulsed EB surface modification technique. Double EB treatment provides a smooth surface and low porosity level and at last but not least this study demonstrate that low-temperature processing of CoNiCrAlY bond coat represents an interesting and promising alternative for their manufacturing.

Český abstrakt

This work focuses to investigate the influence of the parameters used in electron beam (EB) remelting including the effect of double remelting of CoNiCrAlY coatings fabricated on Nickel based super alloy substrates by using the high velocity oxygen-fuel (HVOF) and cold gas dynamic spraying (CGDS) methods. The microstructure of as sprayed and remelted coatings were investigated by scanning electron microscopy and the phase analysis by X-ray diffraction (XRD). The results obtained show that there are advantages at using the pulsed EB surface modification technique. Double EB treatment provides a smooth surface and low porosity level and at last but not least this study demonstrate that low-temperature processing of CoNiCrAlY bond coat represents an interesting and promising alternative for their manufacturing.

Anglický abstrakt

This work focuses to investigate the influence of the parameters used in electron beam (EB) remelting including the effect of double remelting of CoNiCrAlY coatings fabricated on Nickel based super alloy substrates by using the high velocity oxygen-fuel (HVOF) and cold gas dynamic spraying (CGDS) methods. The microstructure of as sprayed and remelted coatings were investigated by scanning electron microscopy and the phase analysis by X-ray diffraction (XRD). The results obtained show that there are advantages at using the pulsed EB surface modification technique. Double EB treatment provides a smooth surface and low porosity level and at last but not least this study demonstrate that low-temperature processing of CoNiCrAlY bond coat represents an interesting and promising alternative for their manufacturing.

Klíčová slova česky

CoNiCrAlY povlaky, High velocity oxygen-fuel, Cold gas dynamic spray, elektrónový lúč

Klíčová slova anglicky

CoNiCrAlY coatings, High velocity oxygen-fuel, Cold gas dynamic spray, Electron beam remelting

Vydáno

24.04.2017

Nakladatel

Trans tech Publications Ltd

Místo

Zurich, Switzerland

ISBN

978-3-0357-1018-2

ISSN

0255-5476

Kniha

Metallography XVI

Strany od–do

574–578

Počet stran

5

BIBTEX


@inproceedings{BUT137602,
  author="Petra {Krajňáková} and Ivo {Dlouhý} and Jan {Čížek} and Jan {Čupera} and Ruslan {Shvab},
  title="Effect of Double Electron beam Remelting on Microstructure of HVOF and CGDS Bond Coat",
  booktitle="Metallography XVI",
  year="2017",
  month="April",
  pages="574--578",
  publisher="Trans tech Publications Ltd",
  address="Zurich, Switzerland",
  isbn="978-3-0357-1018-2",
  issn="0255-5476"
}