证实了Ni53.2Mn22.6Ga24.2单晶发生的两步马氏体相变行为是完全热弹性的.在磁场作用下,该材料的马氏体相变和中问马氏体相变展现出相同的应变特征,且具有磁控双向形状记忆效应.磁场下应力-应变特性的测量结果表明,磁场不但对压应力诱发马氏体相变过程中变体重取向所需应力的大小有影响,而且使原来不可逆的形变成为可逆,这种磁控超弹性特性预示了该合金用作磁控超弹性元器件材料的可能性.
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