Aluminium Metal Matrix Composites Fabricated by Powder Metallurgy Techniques: A Review

Manohar, Guttikonda; Pandey, Krishna Murari; Maity, Saikat Ranjan

doi:10.1007/978-981-19-4918-0_5

Cited by 2 publications

(1 citation statement)

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“…A gradual increase in the composite strength at the expense of ductility is observed in Figure 8 with an increase in the WC content. These observations confirm the role of the incorporated WC particles on the mechanical behaviour of the developed composites where increasing the WC content reduced the ductility and enhanced the strength of the composites [ 32 , 33 ]. The improved strength of the developed composites is attributed to several strengthening/hardening mechanisms.…”

Section: Resultssupporting

confidence: 76%

Synthesis, Microstructure Investigation, Mechanical and Tribological Behaviour of the AA5083–WC Composite

et al. 2023

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In this study, AA5083–WC composites were developed by ball milling followed by hot consolidation. The microstructures of the developed composites were investigated using XRD, SEM, EDX, and EBSD. The developed composites exhibited a homogeneous dispersion of WC particulates in the AA5083 matrix without any interactions at the matrix/reinforcement interface. The results confirmed the development of a refined equiaxed grain structure of AA5083–WC composites where the EBSD results revealed an average grain size of 4.38 µm and 3.32 µm for AA5083–6%WC (AW-6) and AA5083–12%WC (AW-12) composites, respectively. The results showed that incorporating WC particulates in the AA5083 alloy matrix significantly improved the compressive stress–strain behaviour and considerably enhanced the resistance to wear and friction. The AA5083–12%WC (AW-12) composite displayed the maximum strength and the highest resistance to wear and friction, whereas the as-milled AA5083 alloy (AW-0) exhibited the lowest strength and the least resistance to wear and friction. The AA5083–12%WC (AW-12) composite exhibited the optimum mechanical and tribological behaviour of the developed composites, making it a promising candidate for tribological applications.

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Section: Resultssupporting

confidence: 76%