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Prediction of the Fatigue Life of Thermal Barrier Coatings in Gas Turbines: Modelling and Experimental Verification

[+] Author Affiliations
Sören Sjöström

Alstom Power Sweden, Finspång, Sweden

Håkan Brodin, Magnus Jinnestrand

Linköping University, Linköping, Sweden

Paper No. GT2003-38285, pp. 139-146; 8 pages
  • ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference
  • Volume 4: Turbo Expo 2003
  • Atlanta, Georgia, USA, June 16–19, 2003
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-3687-8 | eISBN: 0-7918-3671-1
  • Copyright © 2003 by ASME


Models of oxidation, low-cycle fatigue and thermomechanical fatigue are studied in order to establish a life model of APS-TBC. An experimental programme to pinpoint the relevant mechanisms is run in parallel with macro- and micromechanical modelling, including also fracture-mechanical analysis of the BC/TC interface. Finally, the models are calibrated by further experiments.

Copyright © 2003 by ASME



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