Characteristic effects of alloying elements on β solidifying titanium aluminides: A review

SA Raji, API Popoola, SL Pityana, OM Popoola - Heliyon, 2020 - cell.com
The high strength-to-weight ratio property of titanium aluminide (TiAl) based intermetallic
alloys makes researchers regard this type of material as a potential replacement for the …

Interplay of process, microstructure, and mechanical performance in electron beam-powder bed fusion of Ti48Al2Nb2Cr

P Karimi, MK Keshavarz, E Sadeghi, M Habibnejad… - Additive …, 2023 - Elsevier
To increase the efficiency of the next generation of gas turbines, it is necessary to replace
the heavy Ni-based superalloys with lightweight materials that are resistant to high …

Dynamic recrystallization and hot processing map of Ti-48Al-2Cr-2Nb alloy during the hot deformation

X Chen, B Tang, D Liu, B Wei, L Zhu, R Liu… - Materials …, 2021 - Elsevier
Dynamic recrystallization (DRX) mechanism of Ti-48Al-2Cr-2Nb (at.%) alloy was
investigated by thermal uniaxial compression experiments in this work. The deformed …

Isothermal oxidation behavior of high-Nb-containing TiAl alloys doped with W, B, Y, and C/Si

T Sun, Z Guo, J Cao, Y Liang, J Lin - Corrosion Science, 2023 - Elsevier
The isothermal oxidation behavior of high-Nb-containing TiAl alloys doped with W, B, Y, and
C (WBYC)/Si (WBYS) was investigated via oxidation tests at 900° C in ambient air. Both …

Peculiar microstructural evolution and tensile properties of β-containing γ-TiAl alloys fabricated by electron beam melting

K Cho, H Kawabata, T Hayashi, HY Yasuda… - Additive …, 2021 - Elsevier
The microstructure and tensile properties of β-containing Ti–44Al–4Cr alloy rods additively
manufactured by electron beam melting (EBM) process were examined as a function of input …

On the formation mechanism of banded microstructures in electron beam melted Ti–48Al–2Cr–2Nb and the design of heat treatments as remedial action

R Wartbichler, H Clemens, S Mayer… - Advanced …, 2021 - Wiley Online Library
The formation mechanism of banded microstructures of an electron beam melted
engineering intermetallic Ti–48Al–2Cr–2Nb alloy, the solidification behavior, and the heat …

The significant impact of grain refiner on γ-TiAl intermetallic fabricated by laser-based additive manufacturing

D Huang, Q Tan, Y Zhou, Y Yin, F Wang, T Wu… - Additive …, 2021 - Elsevier
Intermetallic γ-TiAl alloy has been considered as a promising structural material for high
temperature use, owing to their advantages such as low density, high creep strength and …

A study on hot-working as alternative post-processing method for titanium aluminides built by laser powder bed fusion and electron beam melting

I Sizova, A Sviridov, M Bambach, M Eisentraut… - Journal of Materials …, 2021 - Elsevier
Abstract Intermetallic Titanium Aluminides (TiAl) have been designed for high-temperature
lightweight applications. Powder-bed additive manufacturing (AM) processes such as laser …

Research on aluminum component change and phase transformation of TiAl-based alloy in electron beam selective melting process under multiple scan

J Zhou, H Li, Y Yu, Y Li, Y Qian, K Firouzian, F Lin - Intermetallics, 2019 - Elsevier
With the developments and applications of additive manufacturing technologies, additive
manufacturing of hard-workable TiAl-based alloys has been widely studied. Electron beam …

Novel eutectoid Ti-5Ni alloy fabricated via direct energy deposition

PL Narayana, JH Kim, S Lee, JW Won, CH Park… - Scripta Materialia, 2021 - Elsevier
Direct energy deposited (DED) Ti-5Ni (wt.%) alloys promote significant grain refinement with
fine equiaxed grains (~ 30–50 μm); they have discontinuous grain boundary α, fine eutectoid …