Journal of Failure Analysis and Prevention

, Volume 10, Issue 1, pp 56–59 | Cite as

Failure Investigation on Inducer Blades of Locomotive Turbocharger

Technical Article---Peer-Reviewed

Abstract

Damage to varying degrees including fracture, cracking, and scraping occurred on inducer blades used in a locomotive turbocharger which had run for 3626 km. The blade fracture was formed by the propagation of axial and radial cracks forming an L-shape. Fractography investigation indicates that the axial fracture mode of the blade was by fatigue. The radial fracture was formed by one instantaneous crack. A strike dent was present on the leading edge of the fractured blade and this dent became the initiation site of fatigue crack. Failure of other blades was subsequent to the original fracture.

Keywords

Inducer blades Multiple origins fatigue fracture Strike dent Failure analysis 

References

  1. 1.
    Metal Handbook. Fractography and Atlas of Fractographs, 8th edn., vol. 9. American Society for Metals, Metal Park, OH (1974)Google Scholar
  2. 2.
    Park, M. Hwang, Y.-H., Choi, Y.-S., Kim, T.-G.: Analysis of a J69-T-25 engine turbine blade fracture. Eng. Fail. Anal. 9, 539–601 (2002)Google Scholar
  3. 3.
    Kushan, M.C., Diltemiz, S.F., Sackesen, I.: Failure analysis of an aircraft propeller. Eng. Fail. Anal. 14(8), 1693–1700 (2007)CrossRefGoogle Scholar

Copyright information

© ASM International 2009

Authors and Affiliations

  1. 1.Electromechanics and Material Engineering CollegeDalian Maritime UniversityDalianP.R. China

Personalised recommendations