Effects of Moulding Sand Permeability and Pouring Temperatures on Properties of Cast 6061 Aluminium Alloy

Figure 11

Microstructures of cast substrate poured at (a) 700 ± 10°C, (b) 750 ± 10°C, (c) 800 ± 10°C using 80 : 20, and (d) 750°C using 20 : 80 sand mixing ratios with MgFeSi (magnifications 800).

(a)

(b)

(c)

(d)