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Recent Advances in Development and Processing of Titanium Aluminide Alloys

Published online by Cambridge University Press:  21 March 2011

Fritz Appel ,
Helmut Clemens  and
Michael Oehring
Fritz Appel
Affiliation:
Institute for Materials Research, GKSS Research Centre, Max-Planck-Str., D-21502 Geesthacht, GERMANY
Helmut Clemens
Affiliation:
Institute for Materials Research, GKSS Research Centre, Max-Planck-Str., D-21502 Geesthacht, GERMANY
Michael Oehring
Affiliation:
Institute for Materials Research, GKSS Research Centre, Max-Planck-Str., D-21502 Geesthacht, GERMANY
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Abstract

Intermetallic titanium aluminides are one of the few classes of emerging materials that have the potential to be used in demanding high-temperature structural applications whenever specific strength and stiffness are of major concern. However, in order to effectively replace the heavier nickel-base superalloys currently in use, titanium aluminides must combine a wide range of mechanical property capabilities. Advanced alloy designs are tailored for strength, toughness, creep resistance, and environmental stability. Some of these concerns are addressed in the present paper through specific comments on the physical metallurgy and technology of gamma TiAl-base alloys. Particular emphasis is placed on recent developments of TiAl alloys with enhanced high-temperature capability.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 646 , 2000 , N1.1.1
Copyright
Copyright © Materials Research Society 2001

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