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通过采用不同的时效处理工艺研究了Ｂｅ元素对７４７５铝合金组织、时效硬化进程及性能的影响。结果表明：加入一定量的Ｂｅ能加快７４７５铝合金时效硬化进程，使其硬度提高近１倍，同时还可增加时效沉淀相数目，减小其尺寸。
The effects of Be element on the microstructure, age-hardening process and properties of 7475 aluminum alloy were studied by using different aging treatments. The results show that adding a certain amount of Be accelerates the age hardening process of 7475 aluminum alloy and increases the hardness by nearly 1 time. At the same time, it also increases the number of precipitated phases and reduces the size.