本实验采用工业纯金属来制备Cu-Zn-Al多晶体记忆合金,用电测法测绘了该合金在循环应力作用下的σ-ε曲线.结果表明:无论在Af以上或Af以下,一定温度和一定应变下的应力循环次数的增加.均可使Cu-Zn-Al记忆合金的弹性回复量增大;并且达一定次数后.可望得到完全的伪弹性;同时,σ-ε曲线的形状趋于稳定. In this experiment, an industrial pure metal was used to prepare a Cu-Zn-Al polycrystalline memory alloy, and the σ-ε curve of the alloy under cyclic stress was plotted by electrical measurements. The results show that, at or above Af or Af, And the number of stress cycles under certain strain increases, the elastic recovery of the Cu-Zn-Al memory alloy increases, and after a certain number of times, full pseudoelasticity is expected. Meanwhile, the shape of the σ-ε curve becoming steady.