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对Cu-Zn-Al-Ce形状记忆合金再结晶退火规律及其驱动力进行了研究。结果表明:该合金的再结晶转变量分别随退火温度的升高、保温时间的延长和冷轧量的增加而增加;再结晶终了时的晶粒尺寸随冷轧量的增加而减少,随退火温度的升高而增大;再结晶转变的驱动力(即微观应力)随冷轧量的增加而增大,根据试样在不同温度下保温1h退火后α和β相的残余微观应力值,得知α相优先进行再结晶转变。
The recrystallization annealing rules and driving forces of Cu-Zn-Al-Ce shape memory alloys were studied. The results show that the amount of recrystallization transformation increases with the increase of annealing temperature, holding time and the amount of cold rolling, respectively. The grain size at the end of recrystallization decreases with the increase of cold rolling, (Ie, the micro-stress) increases with the increase of the cold rolling amount. According to the residual micro-stress values of the α and β phases after the sample is annealed at different temperatures for 1 hour, It is known that the α phase is preferentially subjected to the recrystallization transformation.