γ -TiAl based intermetallic alloys have attracted broad attention as a potential candidate for high-temperature structural applications.
A careful selection of their composition and microstructure allows to obtain an interesting combination of oxidation resistance, creep resistance and high temperature strength for specific applications.
Intermetallic titanium aluminides have attracted considerable industrial interest for aero and automotive applications owing to their specific strength. These alloys are candidates for high-temperature applications such as turbine blades and turbocharger turbine wheels. In this work, the mechanical behaviour of an as-cast Ti–47Al–3Cr–3Nb (at.-%) alloy was studied. Four-point bending tests were performed to determine the mechanical properties of the alloy at both room and high temperatures. Microhardness and Young’s modulus were evaluated by dynamic indentation tests at room temperature.
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