The AZ31B alloy is embedded with 3 wt% of alumina (Al<inf>2</inf>O<inf>3</inf>) and 3–9 wt% of silicon carbide nanoparticles (SiC) through a liquid stir casting process under constant stir speed applied for achieving uniform particle dispersion. During the process, 0.5 % of Hexachloroethane (C<inf>2</inf>Cl<inf>6</inf>) fluxing agent and argon inert gas are used to enhance the wettability and limit oxide formation. The action of the C²Cl₆ fluxing agent and argon inert nature of the microstructural behaviour of the composite is studied by transmission electron microscopy (TEM), and the particles are uniformly distributed without agglomeration. The action of hybrid filler material promoted more nucleation sites, leading to fine grain, resulting in reduced porosity (0.8 %) and favours increasing the mechanical and wear properties of composites. The AZ31B/3 wt% Al₂O₃/9 wt% SiC has found maximum hardness (103 HV), increased impact toughness (17.4 J/mm2), tensile strength (315 MPa), low wear rate (3.1×10−4 mm3/Nm) and increased coefficient of friction (0.52), which are better than monolithic AZ31B alloy. © 2025 Elsevier B.V., All rights reserved.