Microstructural evolution and dry tribological properties of aluminium matrix composites reinforced with high-entropy alloys

Smith Salifu; Peter Apata Olubambi

doi:10.1080/19397038.2025.2473985

Microstructural evolution and dry tribological properties of aluminium matrix composites reinforced with high-entropy alloys

Smith Salifu, Peter Apata Olubambi

Metallurgy

University of Johannesburg

Research output: Contribution to journal › Article › peer-review

Abstract

This study investigates the microstructural evolution and dry tribological properties of aluminium matrix composites (AMCs) reinforced with high-entropy alloy (HEA). The reinforced AMCs were produced using the spark plasma sintering (SPS) technique with varying HEA contents (5%, 7%, 10%). Microstructural analysis of the reinforced composites showed enhanced interfacial bonding and minimal porosity. Tribological analysis of the reinforced AMCs revealed a significant reduction in wear rate and coefficient of friction with increased HEA content, thus, demonstrating the reinforcing effect of HEA particles in enhancing the wear resistance and durability of AMCs.

Original language	English
Article number	2473985
Journal	International Journal of Sustainable Engineering
Volume	18
Issue number	1
DOIs	https://doi.org/10.1080/19397038.2025.2473985
Publication status	Published - 2025

Keywords

HEA-reinforced composites
sintering
tribolayer
wear

ASJC Scopus subject areas

General Engineering

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10.1080/19397038.2025.2473985

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abstract = "This study investigates the microstructural evolution and dry tribological properties of aluminium matrix composites (AMCs) reinforced with high-entropy alloy (HEA). The reinforced AMCs were produced using the spark plasma sintering (SPS) technique with varying HEA contents (5%, 7%, 10%). Microstructural analysis of the reinforced composites showed enhanced interfacial bonding and minimal porosity. Tribological analysis of the reinforced AMCs revealed a significant reduction in wear rate and coefficient of friction with increased HEA content, thus, demonstrating the reinforcing effect of HEA particles in enhancing the wear resistance and durability of AMCs.",

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AB - This study investigates the microstructural evolution and dry tribological properties of aluminium matrix composites (AMCs) reinforced with high-entropy alloy (HEA). The reinforced AMCs were produced using the spark plasma sintering (SPS) technique with varying HEA contents (5%, 7%, 10%). Microstructural analysis of the reinforced composites showed enhanced interfacial bonding and minimal porosity. Tribological analysis of the reinforced AMCs revealed a significant reduction in wear rate and coefficient of friction with increased HEA content, thus, demonstrating the reinforcing effect of HEA particles in enhancing the wear resistance and durability of AMCs.

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Microstructural evolution and dry tribological properties of aluminium matrix composites reinforced with high-entropy alloys

Abstract

Keywords

ASJC Scopus subject areas

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