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不同时效状态下Al—Li单晶体应变速率敏感性的变化不同．单个锯齿的应力幅度防应变的增加不规则变化，和锯齿的经历时间无关；锯齿的应力幅度和经历时间在峰值时效状态主要分布在较小值的范围内．这些变化可以用切割δ＇粒子产生锯齿流变解释．
Al-Li single crystal under different aging conditions have different sensitivity to strain rate changes. The stress amplitude of single sawtooth increased irregularly with the increase of anti-strain, which was not related to the sawtooth experience time. The sawtooth stress amplitude and duration of aging were mainly distributed in the range of smaller value. These changes can be explained by the sawtooth rheology of cutting δ ’particles.