在抗张强度没有明显降低的条件下，新创立的双时效比正常时效的冲击疲劳寿命与动态断裂韧性分别延长和提高了35 。
By our new way of double aging, on which we have done research since 2002, the impact fatigue life can be prolonged by 35.
简述自行车铝合金辐条条母线的生产工艺。详细介绍了铝合金条母线材双级时效制度的确定方法，并进行了经济、社会效益分析。
Production processing of wire used in bicycle was introduced. The double aging institution has been determined. In addition the economic profits were analyzed.
采用双级时效模拟方式时，外加应力场对析出相的成核及生长阶段均有影响，只是影响程度与析出相自身的点阵错配度有关。
Both nucleation and growth are affected by the external stress by two-step aging simulation, but the effect degree depends on lattice misfit.
研究了淬火、双级时效工艺参数对7475厚板组织、性能的影响。
The influences of the quenching and dual aging process on the structure and properties of 7475 alloy plates are studied.
对复合材料的时效动力学分析表明：硅酸铝短纤维的加入，使基体时效析出的硬度峰提前；时效动力学曲线上出现双硬度峰现象；
The analyses of the aging hardness curve of the composites showed that the additions of Al-silicate short fibber accelerated aging and there were double hardness peaks on the hardness curve.
研究了双级时效处理对7b04铝合金预拉伸厚板的组织和性能的影响。
The microstructure and properties of two-step aged 7b04 aluminum alloy pre-stretched thick plate were investigated using TEM, tensile and electrical conductivity test.
以最大腐蚀深度为腐蚀损伤衡量指标，研究双级时效合金模锻件腐蚀的统计规律。
The results showed that, for 1420 alloy at double-ageing state, the maximum corrosion depth was consistent with the Gumbel distribution law.
以最大腐蚀深度为腐蚀损伤衡量指标，研究双级时效合金模锻件腐蚀的统计规律。
The results showed that, for 1420 alloy at double-ageing state, the maximum corrosion depth was consistent with the Gumbel distribution law.
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