研究了含稀土Tb的多晶Ni50Mn29Ga21磁性形状记忆合金的磁感生应变效应.在一定的应力状态下,可获得-1.1%的大磁感生应变.稀土在明显地细化晶粒和提高材料力学性能的同时,不影响马氏体孪晶界面的运动,反而使应力作用下的磁感生应变效应进一步提高,使材料更具有实用性.
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