Cu—2.4 wt%Ti 合金是一种新型弹性材料,在固溶、形变、时效过程中,其强度与塑性均明显提高.目前国内外对这种特性的机理研究文章不多,本文用微观畸变与相析出理论解释了这一特性,对该合金经860℃固溶、50%形变、450℃时效不同时间的强化机制进行了研究.用 SEM 观察了不同条件下的显微组织的形貌及析出相的分布;用 XRD 应力测定法(方差法)测定了衍射线的宽化度,计算出不同状态下的微观畸变量(微观应力的表征)与嵌镶块大小.对结果进行了讨论. Cu-2.4wt% Ti alloy is a new type of elastic material, its strength and plasticity are obviously improved in solution, deformation and aging process.Nowadays there are few articles on the mechanism of this property at home and abroad, This property was explained by the theory of phase precipitation, and the strengthening mechanism of the alloy at 860 ℃ for solution, 50% deformation and 450 ℃ aging was studied. The morphology of the alloy under different conditions was observed by SEM, The distribution of the precipitates was analyzed by means of XRD. The width of the diffraction line was measured by XRD (Variance method), and the amount of microscopic distortion (microscopic stress) and the size of the mosaic block were calculated under different conditions.