Achieving superior strength-ductility balance by tailoring dislocation density and shearable GP zone of extruded Al-Cu-Li alloy

X Xu, G Wu, X Tong, L Zhang, C Wang, F Qi… - International Journal of …, 2024 - Elsevier
Pre-stretching is commonly employed to accelerate ageing precipitation kinetics in wrought
Al-Cu-Li alloys, but uneven precipitation resulting from dislocation pile-ups often degrades …

Achieving low hot tearing susceptibility in high-strength cast Al–Li alloys: Experimental investigation and simulation assessment

Y Guo, F Qi, L Zhang, G Wu, Y Wang, Y Wang… - Materials Science and …, 2024 - Elsevier
Due to the exceptional low density and high stiffness, cast Al–Li alloys are deemed suitable
for structural applications. However, their economic benefits are limited by intolerable hot …

Revealing the substantial impact of trace Mg addition on the microstructural configuration of a cast Al-Li-Cu-Zr alloy under various conditions

F Qi, X Tong, G Wu, L Zhang, Y Huang, Y Guo - Materials Characterization, 2024 - Elsevier
In this study, the impact of 0.2 wt% Mg addition on the microstructural configuration of a cast
Al-2.5 Li-2.5 Cu-0.15 Zr alloy under different heat treatment conditions was investigated …

Modulation of precipitation behavior by dislocations and alloying for superior strength-ductility balance in Al-Cu-Li alloys

Y Xie, S Liu, X Guo, X He, C Liang, Y Deng - Journal of Alloys and …, 2025 - Elsevier
Conventional T8 heat treatment makes it difficult to achieve the strength and ductility trade-
off of Al-Cu-Li alloys, and a feasible strategy to overcome this challenge in this work …

An extended criterion for hot cracking susceptibility of Al-Li alloys

Y Guo, F Qi, Y Wang, L Zhang, S Pang, Q Li… - Engineering Failure …, 2025 - Elsevier
Abstract Cast Al-Li alloys demonstrate distinct advantages of low density and high stiffness,
showing incomparable superiorities in the manufacture of large, complex structural …

Enhancing strength-ductility synergy in age-hardened Al-Mg-Si alloy via combined pre-ageing and pre-straining

Z Yin, C Liu, P Ma, J Yang - Journal of Alloys and Compounds, 2025 - Elsevier
A pre-treatment strategy via combined pre-ageing and pre-straining has been proposed to
overcome the limitation of strength-ductility in Al-Mg-Si alloy. The dislocations and fine …

Forced cooling-mechanical vibration composite energy field assisted wire-arc directed energy deposition of 2319 aluminum alloy: Microstructure and mechanical …

L Zhang, WZ Bian, K Fu, HX Wang, J Wang… - Journal of Manufacturing …, 2025 - Elsevier
This research employs forced cooling-mechanical vibration (FC-MV) assisted wire-arc
directed energy deposition (DED) to explore the impact of composite energy fields on the …

[HTML][HTML] Effect of pre-rolling and aging temperature on the microstructure and mechanical properties of creep-aged 2050 Al-Li Alloy

G Xu, M Liu, S Liu, L Tang, Y Li, H Li, J Li - Journal of Materials Research …, 2024 - Elsevier
The influences of aging temperatures (160-200° C) and 8% pre-rolling on the mechanical
properties, and microstructures of the creep-aged AA2050 alloys were investigated. The …