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 …

Breaking the high-temperature strength-ductility trade-off in TiAl alloys through microstructural optimization

G Zheng, B Tang, S Zhao, J Wang, Y Xie… - International Journal of …, 2023 - Elsevier
Designing a novel microstructure with higher strength-ductility than lamellar microstructure
(LM), which has been considered the most valuable engineering application in the service …

Superior strength-plasticity synergy in a heterogeneous lamellar Ti2AlC/TiAl composite with unique interfacial microstructure

P Liu, B Hou, A Wang, J Xie, Z Wang, F Ye - Journal of Materials Science & …, 2023 - Elsevier
Improving the plasticity of TiAl alloys at room temperature has been a longstanding
challenge for the development of next-generation aerospace engines. By adopting the nacre …

Coupling effects of temperature and strain rate on the mechanical behavior and microstructure evolution of a powder-plasma-arc additive manufactured high-entropy …

J Wang, H Guo, Z Jiao, D Zhao, X Chen, S Ma, T Zhang… - Acta Materialia, 2024 - Elsevier
A single-phase or simple-structured alloy does not always possess outstanding
combinations of strength and ductility over a wide range of temperatures and strain rates for …

Advanced TiAl Based Alloys: From Polycrystals to Polysynthetic Twinned Single Crystals

Z Zhao, L Chu, M Yu, W Guo… - Advanced Functional …, 2024 - Wiley Online Library
TiAl alloys stand out for low density, high specific strength, and excellent creep resistance,
making them promising for high‐temperature aerospace applications. However, traditional …

Creep behavior and related phase precipitation of a creep-resistant Y2O3-bearing high Nb containing TiAl alloy

Z Liang, S Xiao, Q Li, X Li, D Chi, Y Zheng, L Xu… - Materials …, 2023 - Elsevier
In this study, a creep-resistant Ti-45Al-6Nb-2.5 V-0.15 Y 2 O 3 alloy was developed, and the
microstructure characteristics at different creep stages at 850° C under 200 MPa was …

Tailoring microstructure and improving oxidation resistance of an additively manufactured high Nb containing TiAl alloy via heat treatment

Z Liang, S Xiao, H Yue, X Li, Q Li, Y Zheng, L Xu… - Corrosion …, 2023 - Elsevier
In this paper, the effects of heat treatment on the microstructure and oxidation behavior of Ti-
45Al-8Nb alloy prepared by selective electron beam melting were investigated. The results …

[HTML][HTML] Tensile behavior, microstructural evolution, and deformation mechanisms of a high Nb-TiAl alloy additively manufactured by electron beam melting

H Zhang, D Lu, Y Pei, T Chen, T Zou, T Wang, X Wang… - Materials & Design, 2023 - Elsevier
To evaluate the tensile behavior, microstructural evolution, and deformation mechanisms of
Ti-45Al-8Nb alloy additively manufactured by electron beam melting, uniaxial tensile …

Enhanced high temperature tensile and creep properties of a β-solidified γ-TiAl alloy with the hybrid addition of C and Y2O3

Z Liang, S Xiao, H Yu, Q Li, Y Zheng, L Xu, X Xue… - Intermetallics, 2022 - Elsevier
Abstract β-solidified γ-TiAl alloys are popular lightweight structural materials well suited for
high temperature applications, however, whose service temperature limit is greatly restricted …

Significant enhancement in high-temperature tensile strength of trace nano-Y2O3-reinforced TiAl alloy prepared by selective electron beam melting

H Yue, H Peng, K Miao, B Gao, H Wu, J Yang… - Materials Science and …, 2023 - Elsevier
In this study, the effect of 0.2 wt% Y 2 O 3 nanoparticles addition on the microstructure and
elevated-temperature tensile properties of TiAl alloy prepared by selective electron beam …