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研究了在非稳态条件下，搅拌铸造工艺参数对ＺＡ２７合金的凝固过程及初生相组织形貌转变的影响。结果表明，当持续电磁搅拌时，凝固组织中的初生相能变为细小的近似球形的颗粒，而其主要力学性能与经Ｔｉ－Ｂ变形处理的结果相近；如果搅拌后的冷却速度较快，则使包晶反应减少，初生非枝晶固相颗粒和非平衡共晶组织增多。研究还发现，温度和搅拌速度能控制ＺＡ２７合金半固态浆料的初生相分数及分布，随着搅拌速度或搅拌时间的增加，基体组织的成分变得比较均匀，初生相趋于非枝晶化。
The influence of the process parameters of stirring casting on the solidification process of ZA27 alloy and the morphological transformation of primary phase under unsteady conditions was studied. The results show that when the electromagnetic stirring is continued, the primary phase in the solidified microstructure becomes fine and nearly spherical particles, and its main mechanical properties are similar to those obtained by Ti-B deformation treatment. If the cooling speed after stirring is faster, The peritectic reaction is reduced, the primary non-dendritic solid phase particles and the non-equilibrium eutectic structure are increased. The study also found that the temperature and stirring speed can control the fraction and distribution of primary phase of ZA27 alloy semi-solid slurry. With the increase of stirring speed or stirring time, the composition of the matrix becomes more uniform and the primary phase tends to non-de-crystallization .