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对高铝锌基ＺＡ２７合金在室温下的拉伸断裂特征进行了研究结果表明，ＺＡ２７合金在拉应力作用下，其裂纹源始于树枝晶间的α＋η共晶组织中，裂纹扩展过程是以沿α＋η相扩展，剪断树枝状α相和ε相的方式进行的．并探讨了ＺＡ２７中各相对其强度和塑性的影响．
Tensile fracture characteristics of ZA27 alloy with high aluminum-zinc content at room temperature were studied. The results show that the crack originates in the α + η eutectic structure between dendrites under tensile stress. α + η phase expansion, cut off the dendritic α-phase and ε-phase manner. The influence of each relative strength and plasticity in ZA27 was also discussed.