[Retracted] Synthesis, Mechanical, and Tribological Performance Analysis of Stir-Casted AA7079: ZrO₂ + Si₃N₄ Hybrid Composites by Taguchi Route

Figure 15

(a) Contour plot: % of reinforcement. (b) Contour plot: agitation speed. (c) Contour plot: agitation speed. (d) Contour plot: molten temperature versus % of reinforcement.

(a)

(b)

(c)

(d)