Investigation of Microstructure, Hardness and Wear Behavior of Powder Metal Al 7020 / SiC / Nano Graphene Doped Hybrid Composites

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The highest hardness value reached was 108.476 HBN with 10% SiC and 0.5% nanographene reinforcement.
Composite samples exhibited increased pore amounts with the addition of reinforcement elements, impacting their density.
The microstructure and wear behavior were significantly influenced by the reinforcement composition in the hybrid composites.
High-energy ball milling and sintering methods were employed to create a homogenous powder mixture for testing.

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This investigation evaluates the microstructure and wear behavior of hybrid composites, revealing insights into mechanical properties.

Namalan et al. (2025) studied this question.

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