@article{MAO2026, 
author = {Yuqing MAO and Jinkai WANG and Qing HUANG and Tengfei DU and Shaopeng LIU and Zhiwei QIN and Xiao SONG and Liming KE},
title = {Rotation friction extrusion process towards high-performance Mg-Li matrix composites enhanced by FeCoNiCrCu high entropy alloy},
year = {2026},
journal = {Chinese Journal of Aeronautics},
volume = {39},
number = {4},
keywords = {High entropy alloy, Mechanical properties, Mg-Li matrix composites, Rotation friction extrusion, Strengthening mechanism},
url = {https://www.sciopen.com/article/10.1016/j.cja.2025.103979},
doi = {10.1016/j.cja.2025.103979},
abstract = {To pursue wide applications of Mg-Li alloys in aerospace field, bringing in reinforcement phases reasonably and manufacturing efficiently have become paramount. Herein, a novel rotation friction extrusion process was proposed to fabricate FeCoNiCrCu high entropy alloy reinforced Mg-Li matrix composites, which were enhanced by newly formed nano-sized AlCuMg phase particles. The grain size of Mg-Li matrix composites was 4.19 μm. Meanwhile, a 69.03 nm thickness amorphous layer was obtained, which was composed of amorphous and nanocrystalline structure. The maximum tensile strength reached 201.3 MPa, which was improved by 43.9 % compared with LAZ933 Mg-Li alloy. It can be attributed to fine grain strengthening and dispersion strengthening, which resulted from dynamic recrystallization in Mg-Li alloy and Cu segregation from the interior of high entropy alloy. This work shows a novel processing and original reinforcement phase, providing a peculiar way to fabricate Mg-Li matrix composites.}
}