An experimental study of die and squeeze cast magnesium alloy AM50

This thesis describes and discusses the findings of an in-depth experimental investigation to explore the effect of section thickness on microstructural evolution and mechanical properties of high pressure die cast magnesium alloys AM50. In comparison with die cast AM50, the microstructure and tensile behavior of squeeze cast AM50 also were studied.; High pressure die cast magnesium alloy AM50 is currently used extensively in complex shaped automotive components with various cross-section thicknesses. Understanding of the effect of section thicknesses on mechanical behavior of AM50 is critical for proper design of different applications. In the present study, magnesium alloy AM50 was high pressure die cast into rectangular coupons with section thicknesses of 2, 6 and 10 mm. Microstructural analysis and porosity measurement were performed on the representative specimens. The prepared coupons were tensile tested at room temperature.; Squeeze casting technology has also been applied to produce AM50 alloy discs in this study. (Abstract shortened by UMI.)...