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Development of G4 TiAl Alloys by Spark Plasma Sintering

  • Houria Jabbar (a1) (a2), Jean-Philippe Monchoux (a1) (a2), Marc Thomas (a3) and Alain Couret (a1) (a2)


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.



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