  The Mg-Y-Zn magnesium alloy system is commonly recognized for its remarkable
combination of high strength and ductility, achieved even with minimal amounts
of alloying elements. This exceptional performance is attributed to its unique
microstructure, which includes Long-Period Stacking Ordered (LPSO) phases or
the distinctive microstructure derived from the LPSO phase, referred to as the
Mille-Feuille structure (MFS). This study systematically compares the
traditional ingot metallurgy method with the rapid solidification technique,
coupled with diverse heat treatments and extrusion processes. Microscopic
analyses reveal variations in the presence of LPSO phases, Mille-Feuille
structure, and grain size, leading to divergent mechanical and corrosion
properties. The rapid solidification approach stands out, ensuring superior
mechanical properties alongside a reasonable corrosion rate.
