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Development of G4 TiAl Alloys by Spark Plasma Sintering

Published online by Cambridge University Press:  28 August 2018

Houria Jabbar ,
Jean-Philippe Monchoux ,
Marc Thomas  and
Alain Couret
Houria Jabbar
Affiliation:
CNRS ; CEMES (Centre d’Elaboration de Matériaux et d’Etudes Structurales) ; BP 94347, 29 rue J. Marvig, F-31055 Toulouse, France Université de Toulouse ; UPS ; F-31055 Toulouse, France
Jean-Philippe Monchoux
Affiliation:
CNRS ; CEMES (Centre d’Elaboration de Matériaux et d’Etudes Structurales) ; BP 94347, 29 rue J. Marvig, F-31055 Toulouse, France Université de Toulouse ; UPS ; F-31055 Toulouse, France
Marc Thomas
Affiliation:
DMMP/ONERA, 29 Avenue de le Division Leclerc, BP , 92322 Châtillon Cedex, France
Alain Couret
Affiliation:
CNRS ; CEMES (Centre d’Elaboration de Matériaux et d’Etudes Structurales) ; BP 94347, 29 rue J. Marvig, F-31055 Toulouse, France Université de Toulouse ; UPS ; F-31055 Toulouse, France
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Abstract

G4 alloys (Ti51Al47Re1W1Si0.2) are developed by Spark Plasma Sintering (SPS) with the aim to improve the creep resistance of SPS materials. The microstructure is analyzed by Scanning and Transmission Electron Microscopies (SEM and TEM). The mechanical properties at low and high temperatures are measured. The addition of heavy elements does not lead to an improvement of the mechanical strength.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1128: Symposium U – Advanced Intermetallic-Based Alloys for Extreme Environment and Energy Applications , 2008 , 1128-U03-04
Copyright
Copyright © Materials Research Society 2009

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