| The formation of porosity and intermetallic phases (alpha-AlFeSi, beta-AlFeSi) was investigated for unmodified 356 aluminum-silicon alloy in lost foam casting.;The alloy was cast at three temperatures 700C, 750C and 800C and with four different levels of adhesive thickness (0, 1, 2, 3 Layers) on the foam pattern. It was found that the total pore area percent and pore diameter decreased with increasing adhesive content, which caused an increase in the cooling rate. It was also found that the total pore area percent and pore diameter increased as the casting temperature was increased which resulted in a decrease in the cooling rate.;The adhesive thickness and casting temperature affected the formation of the intermetallics in the casting. It was found that with increasing adhesive content, the amount of alpha-AlFeSi phase increased while the amount of beta-AlFeSi phase decreased. However, when the casting temperature was increased, the alpha-AlFeSi content increased and the beta-AlFeSi content decreased. |
