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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.

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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