Key points are not available for this paper at this time.
Abstract This work presents the manufacturing and detailed evaluation of AA6061‐based aluminium metal matrix hybrid nanocomposites (AMMHNCs) reinforced with boron carbide (B 4 C) and graphite (Gr) nanoparticles, produced through an integrated stir–ultrasonic–squeeze (S + U + Sq) casting process. Eight compositions were fabricated with B 4 C varied from 1–4 wt.% and a constant 2 wt.% Gr, including single (B 4 C/ Gr) and hybrid (B 4 C + Gr) nanocomposites. The influence of reinforcements (both hybrid and single reinforcement) on the microstructure, hardness, tensile strength, and dry sliding wear behavior was systematically investigated. The integrated casting process enabled uniform nanoparticle dispersion, refined equiaxed grains, and minimized porosity. The A3B2G composite (3 wt.% B 4 C + 2 wt.% Gr) achieved peak hardness (68.61 BHN) and tensile strength (232.59 MPa), while the A2B2G variant (2 wt.% B 4 C + 2 wt.% Gr) offered the best balance of strength and wear resistance, with lower wear rate and friction. These results validate the process efficiency and highlight the importance of reinforcement optimization for various applications.
Pandey et al. (Sat,) studied this question.