研究了热机械循环训练对Fe-18Mn-5Si-8Cr-4Ni记忆合金回复应力的影响。结果表明:合金经变形后加热时产生的最大回复应力σh随循环次数的增加而增加,当循环次数达到2时达到最大值156MPa,比不循环训练时的75MPa提高了108%;随后σh将随次数的进一步增加而下降。合金加热后冷却到室温时的回复应力σc随循环次数的增加而增加,在循环次数增加到3时达到最大值255MPa,比不循环训练时的150MPa提高了70%;随后循环次数的增加对σc几乎没有影响。 The effect of thermal mechanical cycle training on the recovery stress of Fe-18Mn-5Si-8Cr-4Ni memory alloy was studied. The results show that the maximum stress σh increases with the increase of the number of cycles, and reaches 156MPa when the number of cycles reaches 2, and 108% more than that of 75MPa when not cycled. Then σh will change with The number of further increase and decline. After the alloy was heated to cool to room temperature, the recovery stress σc increased with the increase in the number of cycles, when the number of cycles increased to 3 to reach the maximum 255MPa, 150MPa than non-cycle training increased by 70%; then increase the number of cycles σc Almost no effect.