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 …

[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 …

Microstructure and mechanical properties of additively manufactured γ-TiAl with dual microstructure

J Knörlein, MM Franke, M Schloffer, T Berger, C Körner - Intermetallics, 2023 - Elsevier
The latest research on electron beam powder bed fusion (PBF-EB), additive manufacturing
(AM) process, reveals the possibility of establishing a dual microstructure and differing …

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 …

Insights into the abnormal flow softening of lamellar γ-TiAl alloys during hot-working: Experimental analysis and numerical simulation

L Cheng, B Zhu, G Yang, F Qiang, J Li - Materials Science and Engineering …, 2022 - Elsevier
In comparison with ordinary alloys, it is well-known that the high temperature flow curves of
lamellar TiAl alloys generally exhibit pronounced flow softening and sharp stress peak. In …

Twinning-induced dislocation and coordinated deformation behavior of a high-Nb TiAl alloy during high-cycle fatigue

X Xu, H Ding, H Huang, H Liang, RV Ramanujan… - International Journal of …, 2023 - Elsevier
The deformation mechanism responsible for the high-cycle rotating bending fatigue of a high-
Nb TiAl alloy was investigated. Fatigue deformation in the γ phase was dominated by …

Effect of microstructure and temperature on the bulk and small-scale deformation behavior of 2nd and 3rd generation advanced intermetallic TiAl alloys

P Nath, SS Kumar, NG Mathews, A Bhattacharjee… - Materials …, 2024 - Elsevier
Advanced intermetallic TiAl alloys have attracted considerable attention as a high-
temperature structural material in aerospace and automobile sectors owing to their low …

[HTML][HTML] Construction of an Arrhenius constitutive model for Mg-Y-Nd-Zr-Gd rare earth magnesium alloy based on the Zener-Hollomon parameter and objective …

L Han, X Zhu, D Wei, Y Yu, G Wang - Journal of Magnesium and Alloys, 2023 - Elsevier
According to a high-temperature compression test of rare earth magnesium alloy (WE43), a
strain-compensated constitutive model of the Arrhenius equation based on Zener-Hollomon …

Study on atomic-scale deformation mechanism based on nanoindentation of duplex full lamellar TiAl alloys with different orientation relationships

B Yi, M Zheng, D Qu, X Wei, W Chen, Z Zhu, J Cheng - Applied Physics A, 2024 - Springer
The effect of the orientation relationship between γ and α2 phases on the mechanical
properties and microstructural evolution in duplex full lamellar TiAl alloys is investigated by …

Study of the mechanism of the strength-ductility synergy of α-Ti at cryogenic temperature via experiment and atomistic simulation

H Yang, H Li, H Sun, H Wang, MW Fu - International Journal of Plasticity, 2024 - Elsevier
Alpha titanium (α-Ti) is a promising material for making high-performance components for
applications in aerospace, marine, energy and healthcare fields. The excellent strength …