Abstract The effect of near-liquidus squeeze casting temperature on microstructure and mechanical property of AZ91D alloy differential support was studied. By increasing the pouring temperature, the grain size of die casting AZ91D alloy differential support increased, the grain morphology changed from spherical equiaxed grain to equiaxed dendrite, and the β-Mg17Al12 phase changed from fine uniform distribution to large-area segregation. Furthermore, with the increase of pouring temperature, the tensile strength and elongation of the AZ91D alloy differential support both decreases.

中文翻译：

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近液相线挤压铸造温度对AZ91D合金差速支撑组织和力学性能的影响

摘要 研究了近液相线挤压铸造温度对AZ91D合金差动支座组织和力学性能的影响。随着浇注温度的升高，压铸AZ91D合金差速支撑晶粒尺寸增大，晶粒形态由球形等轴晶转变为等轴枝晶，β-Mg17Al12相由细小均匀分布转变为大面积偏析。此外，随着浇注温度的升高，AZ91D合金差速支撑的抗拉强度和延伸率均下降。