Heat treatment behavior of can-forged titanium aluminide alloy in (α+γ) region

Abstract

The effect of initial microstructures on the heat treatment behavior of can-forged titanium aluminide alloy has been studied. Optical microscopy and EDX analyses results show that different initial microstructures, including difference in dislocation density, phase distribution and morphology, have inherent effects on the final heat treatment microstructure although at the same heat treatment temperature. An almost full lamellar (NFL) microstructure with an average α₂/γ colony size of 20 µm was obtained through adjusting initial microstructure.

Keywords

titanium aluminide alloy / thermo-mechanical treatment / heat treatment

References

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