高熵合金颗粒增强铝基复合材料研究进展

A review on high entropy alloy particle reinforced aluminum matrix composites

近年来,随着我国航空航天、轨道交通和新能源汽车等领域技术的不断进步,人们对轻质高强材料的需求日益迫切.铝基复合材料因优异的比强度和耐磨性能,在这些领域具有广泛应用前景.传统陶瓷颗粒增强的铝基复合材料存在界面结合差、塑性变形能力低等问题.高熵合金颗粒因具有高强度、良好的界面润湿性和优异的深冷力学性能,成为铝基复合材料增强相的新选择.文中首先介绍了近年来高熵合金颗粒增强铝基复合材料的研究进展,接着分析了高熵合金颗粒增强铝基复合材料的制备工艺.最后,对深冷轧制工艺制备高熵合金颗粒增强的铝基复合材料进行了介绍,分析了深冷轧制工艺在制备该复合材料过程中减少缺陷产生、提高力学性能的机制.

In recent years,the advanced technologies in aerospace,rail transit,and new energy vehicles have created a growing demand for lightweight and high-strength materials.Aluminum matrix composites,known for their excellent specific strength and wear resistance,are promising for applications in these fields.Traditional ceramic particle-reinforced aluminum matrix composites face challenges such as poor interfacial bonding and low plastic deformation capability.High entropy alloy(HEA)particles,with their high strength,good interfacial wettability,and outstanding cryogenic mechanical properties,have emerged as a novel reinforcement option for aluminum matrix composites.This paper reviews recent research progress on HEA particle-reinforced aluminum matrix composites,analyzing their preparation methods.The cryogenic rolling process for fabricating HEA particle-reinforced aluminum matrix composites is introduced,highlighting the mechanisms by which cryogenic rolling reduces defect formation and enhances the mechanical properties of the composites.