Spark plasma sintering of a commercial TiAl 48-2-2 powder: Densification and creep analysis

David Martins (1, 2) , Fanny Grumbach (2) , Audrey Simoulin (2) , Pierre Sallot (3) , Katia Mocellin (1) , Michel Bellet (1) , Claude Estournès (2)

1 CEMEF - Centre de Mise en Forme des Matériaux
2 CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux
3 Safran Tech

Commercial 48-2-2 TiAl powder was densified by spark plasma sintering. Fully dense materials with duplex and lamellar microstructures were obtained. An original protocol was developed to avoid carbide formation due to reactions between TiAl and graphite molds. TiAl materials with lamellar microstructures and high creep behavior were produced.

Mots clés: Spark plasma sintering Intermetallic TiAl Creep parameters Titanium carbide Duplex and Lamellar microstructures

Domaines: Sciences de l'ingénieur [physics]; Matériaux

David Martins, Fanny Grumbach, Audrey Simoulin, Pierre Sallot, Katia Mocellin, et al.. Spark plasma sintering of a commercial TiAl 48-2-2 powder: Densification and creep analysis. Materials Science and Engineering: A, 2018, 711, pp.313-316. ⟨10.1016/j.msea.2017.11.041⟩. ⟨hal-01654599⟩