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Journal of Failure Analysis and Prevention

, Volume 11, Issue 3, pp 186–192 | Cite as

Failure Analysis of a Cast Mn-Bronze Propeller

  • George A. Pantazopoulos
  • Anagnostis I. Toulfatzis
  • Kyriakos A. Tzompanakis
Case History---Peer-Reviewed

Abstract

The investigation of a failure of a cast manganese bronze propeller, fractured after a short service period (~4–5 months), was conducted. Chemical analysis, visual inspection, optical microscopy, fractographic evaluation, SEM/EDS analysis, and hardness testing were used as the principal analytical tools for the failure investigation. The findings suggest that the failure occurred due to fatigue mechanism under low stress conditions. The non-conformities detected in material chemical composition, as well as the presence of internal and surface flaws could be considered as the main contributors of the premature failure of the propeller.

Keywords

Fatigue Fractography Propeller Manganese bronze 

Notes

Acknowledgment

The authors wish to express special thanks to Mr. A. Rikos for his assistance to the completion of the experimental work.

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Copyright information

© ASM International 2010

Authors and Affiliations

  • George A. Pantazopoulos
    • 1
  • Anagnostis I. Toulfatzis
    • 1
  • Kyriakos A. Tzompanakis
    • 2
  1. 1.ELKEME Hellenic Research Centre for Metals S.A.AthensGreece
  2. 2.Tzompanakis Marine PropulsionPiraeusGreece

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