@article{Xu2026, 
author = {Yangyang Xu and Meng Li and Yuchuan Huang and Jiawei Sun and Peng Sun and Hongchao Xiao and Gang Zeng and Qi Li and Youjie Guo and Guohua Wu and Wencai Liu},
title = {Achieving high modulus and strength in ultra-light Mg-Li alloys through in situ-synthesized Mg2Si phase},
year = {2026},
journal = {Journal of Magnesium and Alloys},
volume = {15},
number = {C},
keywords = {Mg-Li alloy, Elastic modulus, Microstructure, Mechanical properties, Dynamic recrystallization},
url = {https://www.sciopen.com/article/10.1016/j.jma.2025.04.009},
doi = {10.1016/j.jma.2025.04.009},
abstract = {Enhancing the low modulus and absolute strength of Mg-Li alloys remains a key research focus. This study employed an in situ-synthesis strategy to incorporate high-modulus phases, such as Mg2Si, achieving a synergistic improvement in strength, plasticity, and modulus. The presence of Mg2Si improved the microstructure of the matrix and promoted dynamic recrystallization, leading to a refined grain size of 2.9 µm. Through the combined effects of grain refinement strengthening and coefficient of thermal expansion mismatch strengthening, the Mg-8Li-3Al-2Zn-1Y-0.5Mn-0.5Gd-1Si alloy exhibited exceptional mechanical properties, including a yield strength of 248 MPa, an ultimate tensile strength of 273 MPa, an elastic modulus of 51 GPa, and a plasticity of 20.6 %. This study offers a new approach for designing and developing ultra-light, high-modulus Mg-Li alloys.}
}