采用正交试验及其方差分析、最小显著差数(LSD)法研究新型Al-Cu-Li-Ag-Mg-Zr-Ce合金的固溶和时效热处理工艺,并采用电导率、SEM、EDX、TEM等测试手段对合金热处理过程中组织结构和性能进行分析.结果表明:该合金在固溶(520℃,1.5h,水冷)和时效(180℃,18h,空冷)处理后,T6态显微硬度比轧制态的提高100.8％,T87态强度值达到623MPa.固溶过程中,大量Ce、Cu、Mg、Zr溶于基体起到固溶强化作用;时效时细小片状强化相T1和薄盘状θ'相均匀弥散在基体中析出,具有强烈沉淀强化效果.
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