Paper Title:
Optimisation of FGM TBC and Their Thermal Cycling Stability
  Abstract

Application of FGM concept for thermal barrier coatings (TBC) provides a superior thermal stress relaxation over homogeneous or duplex coatings. It was demonstrated that FGM TBC have better oxidation resistance and longer lifetime during test conditions. In this work, new FGM TBC system was designed using high-velocity oxygen flame (HVOF) coating process. After coatings optimisation, coating layer was subjected to a hot burner test for thermal fatigue cycling with increasing heat load. It was found that FGM TBC has successfully withstood thermal cycling and prevented visible delamination or transverse cracks. New coating design may give an opportunity to develop a cost-effective FGM TBC system for gas turbine applications.

  Info
Periodical
Materials Science Forum (Volumes 492-493)
Edited by
Omer Van der Biest, Michael Gasik, Jozef Vleugels
Pages
9-14
DOI
10.4028/www.scientific.net/MSF.492-493.9
Citation
M. M. Gasik, A. Kawasaki, Y.S. Kang, "Optimisation of FGM TBC and Their Thermal Cycling Stability", Materials Science Forum, Vols. 492-493, pp. 9-14, 2005
Online since
August 2005
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Price
$32.00
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