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The Dependence of Tensile Ductility on Investment Casting Parameters in Gamma Titanium Aluminides

Published online by Cambridge University Press:  10 February 2011

R. Raban ,
L. L.  and
T. M.
R. Raban
Affiliation:
Department of Materials Science and Engineering Carnegie Mellon University, Pittsburgh, PA 15213, USA.
L. L.
Affiliation:
Department of Materials Science and Engineering Carnegie Mellon University, Pittsburgh, PA 15213, USA.
T. M.
Affiliation:
Department of Materials Science and Engineering Carnegie Mellon University, Pittsburgh, PA 15213, USA.
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Abstract

Plates of three gamma titanium aluminide alloys have been investment cast with a wide variety of casting conditions designed to influence cooling rates. These alloys include Ti-48Al-2Cr-2Nb, Ti- 47Al-2Cr-2Nb+0.5at%B and Ti-45Al-2Cr-2Nb+0.9at%B. Cooling rates have been estimated with the use of thermal data from casting experiments, along with the UES ProCAST simulation package. Variations in cooling rate significantly influenced the microstructure and tensile properties of all three alloys.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 552: Symposium KK – High-Temperature Ordered Intermetallic Alloys VIII , 1998 , KK2.1.1
Copyright
Copyright © Materials Research Society 1999

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References

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