Microstructure and mechanical properties of the sub-rapidly solidified Mg―Zn―Y―Nd alloy prepared by step-copper mold casting

In this paper, the microstructure and compression mechanical properties of the sub-rapidly solidified Mg‒Zn‒Y‒Nd alloy cylinders with diameters of 2–8 mm prepared by step-copper mold casting were investigated. The cooling rate of samples increased gradually with decreasing the mold diameter. The ϕ2-mm sample consists of α-Mg with the smallest grain size of about 10 μm and spherical T-phase, rod-like I-phase, ribbon-like Mg7Zn3 phase,...