Optimization on Stir Casting Process Parameters of Al7050/Nano-B₄C Metal Matrix Composites

Figure 5

(a) Contour plots of microhardness with melting temperature and wt% of B₄C; (b) contour plots of microhardness with stirring speed and wt% of B₄C; (c) contour plots of microhardness with stirring time and melting temperature; (d) contour plots of microhardness with stirring time and stirring speed; (e) contour plots for microhardness with stirring time and wt% of B₄C.

(a)

(b)

(c)

(d)

(e)