Publication detail

MIKROSTRUCTURAL CHANGES OF AIR PLASMA SPRAYED CoNiCrAlY COATING AFTER REMELTING

ŘIČÁNKOVÁ, V. ČELKO, L. KLAKURKOVÁ, L. ŠVEJCAR, J.

Original Title

MIKROSTRUCTURAL CHANGES OF AIR PLASMA SPRAYED CoNiCrAlY COATING AFTER REMELTING

Type

conference paper

Language

English

Original Abstract

The samples in present study were prepared by air plasma spraying (APS) of CoNiCrAlY coatings onto the nickel-based superalloy INCONEL 713LC substrate surface. Immediately, after the spraying was onto the CoNiCrAlY coatings outer surface pressed an high purity aluminium sheet by means of uniaxial cold pressing techniue. After that the samples were annealed at the temperature of 650 C for different dwell-time in argon-flow atmosphere. The modified CoNiCrAlY coatings enriched by aluminium were produced. Moreover the voids, imperfectly melted powder particles, and oxide scale present in original plasma sprayed coating microstructure were eliminated. The scanning electron microscope (SEM) was used to record the modified coatings microstructure. Changes in chemical composition were studied by means of energy dispersive microanalysis (EDX).

Keywords

M-CrAlY coatings, air plasma spraying, heat treatment, remelting, microstructure

Authors

ŘIČÁNKOVÁ, V.; ČELKO, L.; KLAKURKOVÁ, L.; ŠVEJCAR, J.

RIV year

2012

Released

25. 5. 2012

Publisher

TANGER Ltd.

Location

Ostrava

ISBN

978-80-87294-29-1

Book

METAL 2012 Conference proceedings

Edition

1

Edition number

1

Pages from

442

Pages to

447

Pages count

6

BibTex

@inproceedings{BUT92143,
  author="Veronika {Řičánková} and Ladislav {Čelko} and Lenka {Klakurková} and Jiří {Švejcar}",
  title="MIKROSTRUCTURAL CHANGES OF AIR PLASMA SPRAYED CoNiCrAlY COATING AFTER REMELTING",
  booktitle="METAL 2012 Conference proceedings",
  year="2012",
  series="1",
  number="1",
  pages="442--447",
  publisher="TANGER Ltd.",
  address="Ostrava",
  isbn="978-80-87294-29-1"
}