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Fatigue Crack Growth in a TiAl Alloy with Lamellar Microstructure

Published online by Cambridge University Press:  15 February 2011

David L. Davidson
David L. Davidson*
Affiliation:
Southwest Research Institute, P.O. Box 28510, San Antonio, TX 78228
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Abstract

The mechanisms of fatigue crack advance are examined for a lamellar α2 + γ alloy. Crack growth rates are highly dependent on the orientation of the loading axis to the lamellae direction. Thus, the material has some of the characteristics of a composite. For crack growth perpendicular to the lamellae, the mechanisms of crack advance are similar to those of other titanium alloys, while crack growth parallel to lamellae has other characteristics.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 273: Symposium Q – Intermetallic Matrix Composites II , 1992 , 67
Copyright
Copyright © Materials Research Society 1992

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References

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