Processing and Characterization of TiAl-based Alloys: Towards an Industrial Scale

M. Thomas & M.-P. Bacos
This paper highlights Onera efforts focused on the design of new TiAl-based alloys, the development of a commercially-viable route for the manufacture of aero engine components and the optimization of mechanical properties. The alloy G4, with a duplex microstructure, has been developed with an excellent balance of properties for gas turbine applications up to 800°C. Additionally, a series of TiAl-3(Fe,Zr,Mo) alloys have been designed for applications with good ductility requirements. Since these alloys were developed...
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