Tribological Behaviour and Microstructure of an Aluminium Alloy-Based g-SiC Hybrid Surface Composite Produced by FSP

In this work, the microstructure and wear characteristics of a surface-reinforced composite based on an aluminium alloy with a mixture of graphene nanoplatelets (GNP) and silicon carbide (SiC), referred to as g-SiC, fabricated by Friction Stir Processing (FSP), are investigated. To further improve t...

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Bibliographic Details
Published in:Lubricants 2023-03, Vol.11 (3), p.124
Main Authors: Tan, Jun Liang, Liew, Kia Wai
Format: Article
Language:English
Subjects:
Alloys
aluminium alloy
Aluminum
Aluminum base alloys
Coefficient of friction
Friction
Friction reduction
Friction stir processing
Graphene
graphene nanoplatelets
Journal bearings
Lubricants & lubrication
Mechanical properties
Metals
Microstructure
Production costs
Silicon carbide
Solid lubricants
Specialty metals industry
Tribology
wear behaviour
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Summary:In this work, the microstructure and wear characteristics of a surface-reinforced composite based on an aluminium alloy with a mixture of graphene nanoplatelets (GNP) and silicon carbide (SiC), referred to as g-SiC, fabricated by Friction Stir Processing (FSP), are investigated. To further improve the tribological performance, different volume fractions (0 vol%, 5 vol%, 10 vol% and 15 vol%) of g-SiC-reinforced aluminium alloy are prepared by FSP. It is concluded that the Friction Stir Processed (FSPed) AA5083/g-SiC (15 vol%) specimen has optimum reduction in average friction coefficient (61.13%) and optimum reduction in specimen weight (72.97%). In summary, such hybrid reinforcements effectively improve the mechanical and tribological properties of metals with minimal negative impact on the environment and humans, while reducing material loss and overall manufacturing costs.
ISSN:2075-4442
2075-4442
DOI:10.3390/lubricants11030124