A pre-deformation process was employed for a TiAl alloy via high-temperature torsion, in
which the stability of the constituent phases was tailored, resulting in enhanced hardening …

Abstract γ-TiAl-based alloys have been studied for decades due to their attractive properties.
However, the applications are limited because of their poor formability. Electron beam …

Hot processing is extremely effective in optimizing the microstructure of γ-TiAl alloy, and hot
deformation mechanism is the decisive factor in the microstructure evolution. In this paper …

The energetic and electronic characteristics of γ/γ tilt grain boundaries (GBs) in γ-TiAl
intermetallic were comprehensively analyzed using first-principles methods. The interfacial …

The paper comprehensively describes the evolution of metastable microstructures in a cast
low-Ta-containing γ-TiAl alloy during cooling-tempering-lamellarization heat treatments. The …

In most metallic materials, the strength-ductility trade-off serves as an inevitable scenario.
Therefore, improving the room/high-temperature strength/ductility of high Nb-TiAl alloys …

To strengthen TiAl alloys, micro-nano Ti 2 AlC precipitates were fabricated in situ by spark
plasma sintering using Ti–48Al–2Nb–2Cr pre-alloyed powder and multilayer graphene …

The CCT behaviors of a high-Al mid-Nb-containing cast TiAl alloy were experimentally
studied in the current work. Samples with the nominal composition of Ti-48.2 Al-4Nb-2Cr (at …

Multiphase TiAl alloys with refined fully lamellar (RFL) microstructure can balance their
mechanical properties at room temperature (RT) and high temperatures, which is vital for …

Novel γ-based TiAl alloys are a promising alternative to conventional dual-phase TiAl alloys,
which suffer from microstructural degradation and solid-state phase transformations at high …