A review of microstructure control and mechanical performance optimization of γ-TiAl alloys

R Xu, M Li, Y Zhao - Journal of Alloys and Compounds, 2023 - Elsevier
Upgrading and developing metallic materials are bases for improving the performance of
aircraft. As one of the new structural metallic materials used in aerospace, lightweight and …

Effect of mechanical ball milling on the electrical and powder bed properties of gas-atomized Ti–48Al–2Cr–2Nb and elucidation of the smoke mechanism in the …

S Yim, K Aoyagi, K Yanagihara, H Bian… - Journal of Materials …, 2023 - Elsevier
Smoke is unexpected powder-splashing caused by electrostatic force and is one of the main
problems hindering the process stability and applicability of the powder bed fusion electron …

Cracking behavior of Ti-48Al-2Cr-2Nb alloy in powder bed fusion electron beam melting process

S Yim, K Aoyagi, H Bian, K Yanagihara, Y Lei… - Journal of Materials …, 2023 - Elsevier
Powder bed fusion electron beam (PBF-EB) melting process with low preheating
temperatures is one of the promising ways to fabricate TiAl components with fully lamellar …

Effects of boron, Hf and Ta content on boride morphology and microstructure of β-solidified γ-TiAl alloys

K Wang, Y Tian, Z Deng, L Zhang, L Liu - Vacuum, 2023 - Elsevier
Boron is the most commonly used grain refining element in γ-TiAl alloys and the morphology
of the borides has a significant influence on the room temperature plasticity of γ-TiAl alloys …

Twin-wire directed energy deposition-arc of Ti–48Al–2Cr–2Nb alloy: feasibility, microstructure, and tensile property investigation

W Zhou, C Shen, X Hua, Y Zhang, L Wang… - Materials Science and …, 2022 - Elsevier
Due to low density and good high temperature performance, titanium aluminide has been
continuously attractive for aerospace and automotive industries. In recent years, additive …

Effects of heat treatment on the microstructures and mechanical properties of as-cast Ti-45Al-2Nb-2Cr-(0.2, 0.5) C alloys

Q Wang, X Wu, X Liu, L Zeng, H Ding, R Chen… - Journal of Alloys and …, 2023 - Elsevier
Heat treatment is an effective post-processing method to modify the microstructure and
mechanical properties of TiAl alloys. Thus, we report the influences of a heat treatment at …

Effect of substrate temperature on microstructure and mechanical properties of TiAl alloy fabricated using the twin-wire plasma arc additive manufacturing system

L Wang, W Zhou, C Shen, Y Zhang, F Li, Y Ding… - Journal of Materials …, 2022 - Springer
TiAl alloy becomes a promising high-temperature structural material due to excellent
mechanical properties at elevated temperature. However, the inherent brittleness makes it …

Enhanced tensile properties and intersecting nanotwins formation mechanism of Ti44Al48Nb8 alloy via electromagnetic levitation processing

C Liang, WB Liu, HP Wang - International Journal of Plasticity, 2022 - Elsevier
Combining the electromagnetic levitation (EML) method with materials processing
techniques (pressure die-casting and copper mold solidification), bulk Ti 44 Al 48 Nb 8 alloy …

Effects of cycle heat treatment on the microstructure and mechanical property of as-cast γ-TiAl alloy

S Cao, J Han, H Wang, S Xiao, L Xu, Y Chen - Materials Science and …, 2022 - Elsevier
Cyclic heat treatment has been applied to improve the microstructure and properties of the
as-cast Ti–46Al–1Cr–2V alloy. The grain size was refined from millimeter scale to about 40 …

Pollution-free grain refinement of cast TiAl alloys by vacuum mechanical vibration solidification

J Yao, S Fan, X Liu, X Ding, H Huang, W Wu… - Materials Science and …, 2023 - Elsevier
The implementation of the well-known methods for grain refinement of cast TiAl alloys, such
as boron refiner, leads to compositional pollution and deterioration of specific types of …