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Thermo-Mechanical Fatigue Experiments of Single Crystal Hollow Turbine Blades

[+] Author Affiliations
Fulei Jing, Rongqiao Wang, Dianyin Hu

Beihang University, Beijing, China

Paper No. GT2012-68523, pp. 143-147; 5 pages
doi:10.1115/GT2012-68523
From:
  • ASME Turbo Expo 2012: Turbine Technical Conference and Exposition
  • Volume 7: Structures and Dynamics, Parts A and B
  • Copenhagen, Denmark, June 11–15, 2012
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-4473-1
  • Copyright © 2012 by ASME

abstract

The thermo-mechanical fatigue (TMF) experiments have been performed on the critical section of single crystal hollow turbine blades. An experimental system was constructed for the TMF experiments. A special loading device was designed and machined for the blades to provide loading conditions and simulate the stress distribution on the critical section. Induction heating and air cooling were utilized to provide anisothermal conditions. A new induction coil was designed to satisfy the requirements of the temperature distribution on the critical section. This TMF experimental system provided evidence that the loading and anisothermal conditions experienced by the turbine blades during service could be reproduced in a laboratory environment.

Copyright © 2012 by ASME

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