Influence of subsurface layer on the indentation damage behavior of YSZ thermal barrier coating layers deposited by electron beam physical vapor deposition

Yong Suk Heo, Sang Hyun Park, In Sub Han, Sang Kuk Woo, Yeon Gil Jung, Ungyu Paik, Kee Sung Lee

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The thermal barrier coating must withstand erosion when subjected to flowing gas and should also maintain good stability and mechanical properties while it must also protect the turbine component from high temperature, hot corrosion, creep, and oxidation during operation. In this study we investigated the influence of subsurface layer, Al2O3 or NiCrCoAlY bond coat layer, on the indentation damage behavior of YSZ thermal barrier coating layers deposited by electron beam physical vapor deposition (EB-PVD). The bond coat is deposited using different process such as air plasma'spray (APS) or spray of high velocity oxygen fuel (HVOF) and the thickness is varied. Hertzian indentation technique is used to induce micro damages on the coated layer. The stress-strain behaviors are characterized by results of the indentation tests.

Original languageEnglish
Pages (from-to)549-555
Number of pages7
JournalJournal of the Korean Ceramic Society
Volume45
Issue number9
DOIs
StatePublished - 2008 Sep 1

Fingerprint

Thermal barrier coatings
Physical vapor deposition
Indentation
Electron beams
Turbine components
Erosion
Creep
Gases
Corrosion
Oxygen
Plasmas
Oxidation
Mechanical properties
Air

Keywords

  • Indentation
  • Subsurface
  • Thermal barrier coating
  • Yttria stabilized zirconia

Cite this

Heo, Yong Suk ; Park, Sang Hyun ; Han, In Sub ; Woo, Sang Kuk ; Jung, Yeon Gil ; Paik, Ungyu ; Lee, Kee Sung. / Influence of subsurface layer on the indentation damage behavior of YSZ thermal barrier coating layers deposited by electron beam physical vapor deposition. In: Journal of the Korean Ceramic Society. 2008 ; Vol. 45, No. 9. pp. 549-555.
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Influence of subsurface layer on the indentation damage behavior of YSZ thermal barrier coating layers deposited by electron beam physical vapor deposition. / Heo, Yong Suk; Park, Sang Hyun; Han, In Sub; Woo, Sang Kuk; Jung, Yeon Gil; Paik, Ungyu; Lee, Kee Sung.

In: Journal of the Korean Ceramic Society, Vol. 45, No. 9, 01.09.2008, p. 549-555.

Research output: Contribution to journalArticle

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AU - Heo, Yong Suk

AU - Park, Sang Hyun

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AU - Jung, Yeon Gil

AU - Paik, Ungyu

AU - Lee, Kee Sung

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