Failure analysis of a set of compressor blades

E. Silveira, G. Atxaga, A. M. Irisarri*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)

Abstract

This paper analyses the root causes of the failure of a set of blades belonging to the high pressure compressor of an aircraft engine. All these blades were manufactured using a 718 nickel base alloy. The performed study consisted in a fractographic analysis by scanning electron microscopy and a microstructural study using both scanning and optical microscopy. Phases which were present in the fracture surfaces were identified by means of X-ray energy dispersive spectrometry. As a result of this labour the failure was attributed to the impact of sand and stones; that is the so-called foreign object damage mechanism.

Original languageEnglish
Pages (from-to)666-674
Number of pages9
JournalEngineering Failure Analysis
Volume15
Issue number6
DOIs
Publication statusPublished - Sept 2008

Keywords

  • Compressor blades
  • Foreign object damage
  • Nickel base alloys

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