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测试了铸造锌铝合金 ＺＡ２７材料的断裂韧度 Ｋ(ＩＣ)，对试验试件断口进行了显微分析，并由此提出了锌铝合金ＺＡ２７在生产和使用中应注意的问题。
The fracture toughness K (IC) of ZA27 cast zinc alloy was tested and the fracture of the test specimen was analyzed microscopically. And then, the problems that should be paid attention to in the production and application of ZA27 ZA27 alloy were proposed.