The shape memory alloy has shape memory effect, and development is very quick.It is widely uesed in many fields, such as aeronautics, mechanism, electricity, medical treatment, and our daily life etc.

• 形状记忆合金由于其特有的形状记忆性能；发展很快；在宇航、机械、电气、医疗卫生、日常生活等方面得到了广泛的应用.