Failure analysis of two sets of aircraft blades

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This paper describes the methodology employed for the failure analysis of aircraft blades and its application to two premature failed sets. The first one corresponds to the high pressure compressor manufactured in a 718 nickel base superalloy. The failure analysis carried out on this blade points towards foreign object damage (FOD). The second set belongs to the high pressure turbine of another engine. Scanning electron microscopy attributes the first fail to the premature failure by a thermo-mechanical fatigue mechanism of one blade with an inadequate microstructure. The remaining blades of this set, which possess a correct microstructure, failed due to the impacts of the debris generated by the fracture of the first one. © 2008 Elsevier Ltd. All rights reserved.




Silveira, E., Atxaga, G., & Irisarri, A. M. (2010). Failure analysis of two sets of aircraft blades. Engineering Failure Analysis, 17(3), 641–647.

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