Journal of Failure Analysis and Prevention

, Volume 9, Issue 2, pp 122–126 | Cite as

Fatigue Failure of a Ground-Engaging Tool

Case History---Peer-Reviewed

Abstract

A cast steel tooth used in an earth-moving application was analyzed to determine the cause of failure. The tooth reportedly failed prematurely during service was analyzed for chemical composition, hardness, and microstructure, in addition to extensive scanning electron microscopy of the fracture surface. The presence of a casting defect caused the initiation of a fatigue process due to a loose fit between the tooth and its adapter.

Keywords

Wear Fatigue failure Failure analysis 

Notes

Acknowledgments

The author would like to thank Steve Whymark and Sean Sinfield for their assistance in the preparation of the samples for microscopy and testing. Thanks are due to Ludwig and Associates, Edmonton for their help in scanning electron microscopy.

References

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    Sachs, N.W.: Understanding the surface features of fatigue fractures: how they describe the failure cause and failure history. J. Fail. Anal. Prev. 5(2), 11–15 (2005)CrossRefGoogle Scholar
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    Failure analysis and prevention. In: Metals Handbook, vol. 11. ASM International, Materials Park (2002), P708Google Scholar

Copyright information

© ASM International 2009

Authors and Affiliations

  1. 1.Black Cat Blades LtdEdmontonCanada

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