Strength-ductility synergy induced by high-density stacking faults in aluminum alloy composites with micro/nano hybrid reinforcements

Saba, Farhad; Sun, Hang; Fan, Genlian; Tan, Zhanqiu; Xiong, Ding‐Bang; Li, Zan; Li, Zhiqiang

doi:10.1016/j.compositesa.2023.107700

Cited by 10 publications

(1 citation statement)

References 80 publications

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“…Although aluminum alloys have high mechanical properties, they exhibit low tribological properties in cases of dry sliding or insufficient lubrication [3]. Metal matrix composites (MMCs) have been developed to improve the low performance of traditionally used metals [4]. MMCs can be produced by making use of infiltration, stirred, centrifugal casting, and powder metallurgy (PM) techniques.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Wear Resistance and Mechanical Behaviors of AA7020 Alloys Using Hybrid Fe3O4-GNP Reinforcement

Taşcı,

Yılmaz,

Karakoç

et al. 2024

Lubricants

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This study investigates the effect of graphene nanoplatelets (GNPs) and milling duration on the microstructure, mechanical properties, and wear resistance of the AA7020 alloy reinforced with Fe3O4 and GNP. The composites were prepared with a fixed 10 wt.% Fe3O4 and varying GNP contents (0.5 and 1 wt.%) using high-energy ball milling for 4 and 8 h, followed by hot pressing. The aim was to enhance the performance of the AA7020 alloy for potential use in defense, automotive, aviation, and space applications, where superior mechanical properties and wear resistance are required. The results showed that the incorporation of 0.5 wt.% GNP and optimized milling significantly improved the composite’s performance. The AA7020 + 10 wt.% Fe3O4 + 0.5 wt.% GNP composite achieved the highest density (99.70%) when milled for 4 h. Its hardness increased with both the inclusion of GNP and extended milling duration, with the composite milled for 8 h exhibiting the highest hardness value (149 HBN). The tensile strength also improved, with the composite milled for 4 h showing a 28% increase (292 MPa) compared with the unreinforced alloy. Additionally, the friction coefficient decreased with GNP content and milling duration, with the composite milled for 8 h showing a 26% reduction. Wear resistance was notably enhanced, with the composite milled for 8 h exhibiting the lowest specific wear rate (7.86 × 10−7 mm3/Nm).

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Section: Introductionmentioning

confidence: 99%

Enhancing Wear Resistance and Mechanical Behaviors of AA7020 Alloys Using Hybrid Fe3O4-GNP Reinforcement

Taşcı,

Yılmaz,

Karakoç

et al. 2024

Lubricants

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Recent Research on the Optimization of Interfacial Structure and Interfacial Interaction Mechanisms of Metal Matrix Composites: A Review

Zhong,

Jiang,

Sun

et al. 2024

Adv Eng Mater

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Interfaces in metal matrix composites (MMCs) are crucial in determining the mechanical properties and functionality of MMCs. This article reviews recent scientific advances and issues related to MMC interfaces from four different perspectives: interfacial structural design, interfacial defect control, thermodynamics and kinetics of interfacial reactions, and interfacial microstructure properties‐based numerical simulation. The influence of interfacial microstructural features on interfacial strength–toughness trade‐offs and their functionality is given special attention. The interfacial problem is still one of the main challenges to be solved in the composite system, which is mainly reflected in the following aspects: interfacial microstructure–deformation mechanisms in complex systems, precise control of interfacial defects and interfacial reaction products, and the efficient and cost‐effective application of numerical simulation techniques. The integrated computation and intelligent design (artificial intelligence) of composites through multiscale computational simulation with the guidance of “interface design‐property prediction” will be the key area of MMC interface research in the future.

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Uniformly dispersed ultrahigh-content nanoparticles reinforced aluminum composites achieved by flake dispersion approach

He,

Fan,

Saba

et al. 2024

Composites Communications

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Strength-ductility synergy induced by high-density stacking faults in aluminum alloy composites with micro/nano hybrid reinforcements

Cited by 10 publications

References 80 publications

Enhancing Wear Resistance and Mechanical Behaviors of AA7020 Alloys Using Hybrid Fe3O4-GNP Reinforcement

Enhancing Wear Resistance and Mechanical Behaviors of AA7020 Alloys Using Hybrid Fe3O4-GNP Reinforcement

Recent Research on the Optimization of Interfacial Structure and Interfacial Interaction Mechanisms of Metal Matrix Composites: A Review

Uniformly dispersed ultrahigh-content nanoparticles reinforced aluminum composites achieved by flake dispersion approach

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