高熵合金颗粒增强2024铝基复合材料的固态制造、显微组织、显微硬度和磨损评价

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-10-04 DOI:10.1016/j.matlet.2025.139633

G.D. Avila-Rubio , F.J. Baldenebro-Lopez , C. Carreño-Gallardo , M. Soto-Felix , J.E. Leal-Perez , M.A. Avila-Rubio

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引用次数: 0

摘要

采用机械合金化的方法合成了高熵合金AlCoFeMoNiTi和AlCoFeMoNiTiZn，并将其作为增强剂应用于电磁感应烧结单轴挤压法制备的2024铝基复合材料中。扫描电子显微镜和能量色散光谱分析显示，增强颗粒具有近等原子组成、不规则形态和粗糙表面。微观结构分析表明，增强剂分散均匀，没有界面反应的证据，这表明物理结合是主要的。仅加入3wt %的高熵合金就能减少50%以上的磨损体积，而加入5wt %的AlCoFeMoNiTi则能使硬度提高85%。这些结果表明，将高熵合金与快速固态加工相结合，是生产轻型铝基复合材料的一种非常有效的策略，具有增强的机械和摩擦学性能，可用于先进的工程应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Solid-state manufacturing and microstructural, microhardness, and wear evaluation of 2024 aluminium matrix composites reinforced with high-entropy alloys particles

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Solid-state manufacturing and microstructural, microhardness, and wear evaluation of 2024 aluminium matrix composites reinforced with high-entropy alloys particles

In this work, high-entropy alloys AlCoFeMoNiTi and AlCoFeMoNiTiZn were synthesized by mechanical alloying and employed as reinforcements in 2024 aluminium matrix composites produced via uniaxial pressing with electromagnetic induction sintering. Scanning electron microscopy and energy-dispersive spectroscopy analyses revealed reinforcements particles with a near-equiatomic composition, irregular morphology, and rough surfaces. Microstructural analysis showed a homogeneous dispersion of reinforcements and no evidence of interfacial reactions, which suggests that physical bonding is dominant. Incorporating only 3 wt% high-entropy alloys reduced wear volume by more than 50 %, while 5 wt% AlCoFeMoNiTi achieved an 85 % hardness improvement. These results demonstrate that combining high-entropy alloys with rapid solid-state processing is a highly effective strategy for producing lightweight aluminium matrix composites with enhanced mechanical and tribological performance for advanced engineering applications.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive