介绍了固溶处理温度、淬火到时效间隔时间及时效制度等对2A70铝合金预拉伸厚板组织和性能的影响；
The effect of quenching temperature, the interval time from quenching to aging and aging institution to 2A70 aluminium alloy pre-stretching plate structure and properties are introduced.
在获得淬火残余应力的基础上，模拟了不同预拉伸量对毛坯的淬火残余应力的消除。
With FEA based quenched stress, different stress distributions were obtained under different conditions of pre-stretching.
通过力学性能测试，扫描电镜、透射电镜观察等手段，研究了固溶淬火后不同程度预变形对2197铝锂合金力学性能及显微组织的影响。
The effects of plastic deformation prior to artificial aging on the microstructure and tensile properties of 2197 Al-Li alloy were investigated through tensile test, SEM and TEM.
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