Publication detail

STRUCTURAL STABILITY OF THERMAL BARRIER COATINGS PRODUCED BY THERMAL SPRAYING

ČELKO, L. KLAKURKOVÁ, L. SLÁMEČKA, K. HUTAŘOVÁ, S. JULIŠ, M. NĚMEC, K. PODRÁBSKÝ, T. ŠVEJCAR, J.

Original Title

STRUCTURAL STABILITY OF THERMAL BARRIER COATINGS PRODUCED BY THERMAL SPRAYING

Type

conference paper

Language

English

Original Abstract

One type of functionally graded coating system is thermal barrier coating (TBC), where the combination of ceramic and metallic coating is used both to reduce the temperature and to increase oxidation and corrosion resistance of the substrate. TBCs usually consist of the top ceramic coating based on YSZ (ZrO2+Y2O3) and the metallic bond coating of M-CrAlY type, where M means Ni, Co or their appropriate combination. Electron beam physical vapour deposition (EB-PVD) or vacuum (VPS), low pressure (LPPS) or atmospheric (APS) plasma spraying techniques are most frequently used as a deposition method. Despite some requirements on the product shape simplicity, the air plasma spraying offers high productivity, sufficient quality and much lower production costs in comparison with the EB-PVD technology. The contribution deals with high temperature structural stability of TBCs of YSZ + NiCrAlY and YSZ + CoNiCrAlY types that were produced by air plasma spraying on the INCONEL 713LC polycrystalline nickel based superalloy substrate. Immediately after deposition, the specimens were exposed to temperature of 1000 C for 5-500 hours in the common ambient atmosphere. The changes in both microstructure and chemical composition were studied by means of scanning electron microscopy, energy dispersive microanalysis and image analysis methods.

Keywords

Plasma Spraying, Thermal Barrier Coatings, Nickel-based Superalloys, Thermal exposure, Microstructure

Authors

ČELKO, L.; KLAKURKOVÁ, L.; SLÁMEČKA, K.; HUTAŘOVÁ, S.; JULIŠ, M.; NĚMEC, K.; PODRÁBSKÝ, T.; 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

998

Pages to

1004

Pages count

7

URL

https://www.scopus.com/record/display.uri?eid=2-s2.0-84923885113&origin=resultslist&sort=plf-f&src=s&st1

BibTex

@inproceedings{BUT92753,
  author="Ladislav {Čelko} and Lenka {Klakurková} and Karel {Slámečka} and Simona {Hutařová} and Martin {Juliš} and Karel {Němec} and Tomáš {Podrábský} and Jiří {Švejcar}",
  title="STRUCTURAL STABILITY OF THERMAL BARRIER COATINGS PRODUCED BY THERMAL SPRAYING",
  booktitle="METAL 2012 Conference proceedings",
  year="2012",
  series="1",
  number="1",
  pages="998--1004",
  publisher="TANGER Ltd.",
  address="Ostrava",
  isbn="978-80-87294-29-1",
  url="https://www.scopus.com/record/display.uri?eid=2-s2.0-84923885113&origin=resultslist&sort=plf-f&src=s&st1"
}