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俄罗斯专利RU2327757中公布的这种高性能结构件用Al基合金的化学成分的质量分数为:8.0%～9.0%Zn,2.3%～3.0%Mg,2.0%～2.6%Cu,0.05%～0.2%Zr,0.05%～0.3%Fe 0.03%～0.15%Si,0.001%～0.05%Mn,0.005%～0.05%Ti,0.000 5%～0.005%Be,0.001～0.05%Ca或Ga,0.000 5%～0.005%B或0.000 01%～0.005%C。该合金具有高强度、高使用可靠性、良好的加工性能等优点,适用于核工业用气体离心机、飞机和火箭发动机等对材料性能要求较高的设备零部件的制造。
The mass fraction of the chemical composition of the Al-based alloy for such a high-performance structural member disclosed in Russian patent RU2327757 is 8.0% -9.0% Zn, 2.3-3.0% Mg, 2.0-2.6% Cu, 0.05-0.2% Zr 0.05% to 0.3% Fe 0.03% to 0.15% Si 0.001% to 0.05% Mn 0.005% to 0.05% Ti 0.000 5% to 0.005% Be 0.001% to 0.05% Ca or Ga 0.0005% to 0.005% % B or 0.000 01% to 0.005% C. The alloy has the advantages of high strength, high reliability of use, good processing performance and the like, and is suitable for the manufacture of equipment components with high requirements on material properties such as gas centrifuges for nuclear industry, aircraft and rocket engines.