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An Overview of Potential Titanium Aluminide Composites in Aerospace Applications

Published online by Cambridge University Press:  15 February 2011

James M. Larsen ,
William C. Revelos  and
Mary L. Gambone
James M. Larsen
Affiliation:
Materials Directorate, Wright Laboratory, WL/MLL Wright-Patterson AFB, OH 45433
William C. Revelos
Affiliation:
Materials Directorate, Wright Laboratory, WL/MLL Wright-Patterson AFB, OH 45433
Mary L. Gambone
Affiliation:
Materials Directorate, Wright Laboratory, WL/MLL Wright-Patterson AFB, OH 45433
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Abstract

High-temperature, light-weight materials represent enabling technology in the continued evolution of high-performance aerospace vehicles and propulsion systems being pursued by the U.S. Air Force. In this regard, titanium aluminide matrix composites appear to offer unique advantages in terms of a variety of weightspecific properties at high temperatures. However, a key requirement for eventual structural use of these materials is a balance of mechanical properties that can be suitably exploited by aircraft and engine designers without compromising reliability. An overview of the current capability of titanium aluminide composites is presented, with an effort to assess the balance of properties offered by this class of materials. Emphasis is given to life-limiting cyclic and monotonic properties and the roles of high-temperature, time-dependent deformation and environmental effects. An attempt is made to assess the limitations of currently available titanium aluminide composites with respect to application needs and to suggest avenues for improvements in key properties.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 273: Symposium Q – Intermetallic Matrix Composites II , 1992 , 3
Copyright
Copyright © Materials Research Society 1992

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References

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