High temperature TiAl2 -based ternary alloys


Ontology type: sgo:Patent     


Patent Info

DATE

1994-11-29T00:00

AUTHORS

Nuri Durlu , Osman T. Inal

ABSTRACT

Two phase, TiAl2 -based, ternary aluminides of iron, nickel and other transitional metals are disclosed. A transformation from the tetragonal crystal configurations of the TI--Al system to the face-centered cubic configurations of the TI--Al--Fe and TI--Al--Ni systems is attributed to the transitional elements substituting for titanium in the face-centered cubic crystal lattice of the titanium aluminides. The resulting alloys of the composition Ti30 M4 Al66 or Ti25 M9 Al66, including Ti30 Fe4 Al66 and Ti30 Ni4 Al66, are low density, high temperature, aluminum-rich alloys possessing desirable properties, including ductility. More... »

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