Journal of Failure Analysis and Prevention

, Volume 13, Issue 6, pp 689–696 | Cite as

Investigation of Fatigue Failures of Titanium Alloy Blades Used in Compressor Modules of Aeroderivative Industrial Gas Turbines

  • M. Jasiczek
  • D. Szcześniak
  • J. Kaczorowski
  • M. Innocenti
Case History---Peer-Reviewed

Abstract

Gas turbine axial compressor blades are designed to withstand cyclic stress loading resulting of modal vibrations. However, when surface suffers from foreign object damage, a fatigue crack is likely to initiate. In this paper two failure case-studies of titanium alloy used for aeroderivative gas turbine compressor blades are presented. Both are related to a failure of first stage compressor blades coming from different turbine power ranges. Observed cracks were found at blade spans corresponding to modal vibrations.

Keywords

Ti6Al4V Titanium alloys Gas turbine Axial compressor blades Failure 

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Copyright information

© ASM International 2013

Authors and Affiliations

  • M. Jasiczek
    • 1
  • D. Szcześniak
    • 2
  • J. Kaczorowski
    • 2
  • M. Innocenti
    • 3
  1. 1.Warsaw Institute of AviationWarsawPoland
  2. 2.General Electric Company Polska Sp. z o. o.WarsawPoland
  3. 3.General Electric Nuovo Pignone S.r.l.FlorenceItaly

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