Abstract
This paper describes how a submicrocrystalline structure can be produced by isothermal deformation of cast and powder metallurgy γ-TiAl-based alloys at temperatures 1000°C and below using relatively inexpensive nickel-based superalloy die tooling. A detailed analysis of the effects of initial microstructure, chemical compositions, conditions of heat treatment and hot working on the formation of a homogeneous fine-grained microstructure in γ-TiAl-based alloys is presented.
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Salishchev, G., Senkov, O., Imayev, R. et al. Processing and Deformation Behavior of Gamma TiAl Alloys with Fine-Grained Equiaxed Microstructures. Advanced Performance Materials 6, 107–116 (1999). https://doi.org/10.1023/A:1008718724229
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DOI: https://doi.org/10.1023/A:1008718724229