有一类特殊的合金,它们的形状被改变之后,一旦加热到一定的跃变温度时,又可以魔术般地变回到原来的形状,人们把具有这种特殊功能的合金称为形状记忆合金。形状记忆合金的开发迄今不过几十年,但由于其在各领域的特效应用,正广为世人所瞩目,被誉为“神奇的功能材料”。 There is a special class of alloys whose shape has been changed and, once heated to a certain transition temperature, can magically return to their original shape. People call alloys with this special function as shape memory alloys. Shape memory alloy has been developed for several decades, but due to its special effects in various fields, it is widely regarded by the world as “the magic material”.