形状记忆合金.ppt

文档介绍：The foundation theory of the shape memory alloy
The shape memory alloy
Shape memory alloy material is a kind of
The foundation theory of the shape memory alloy
The shape memory alloy
Shape memory alloy material is a kind of novel functional can change its form (shape and volume) under a certain forces,but when the temperature rise to a certain value, it can fully recover original form .
The foundation theory of the shape memory alloy
Although there are many theory about Martensite transformation. But no one could explain the Martensite transformation perfect. The shear mechanism is the generally accepted mechanism for martensitic transformation,it is inconsistent with the actual experiment．
Martensite transformation is the foundation theory of the shape memory alloy()

The mechanism of the nucleation of Martensite forms
We can see the nucleation of Martensite forms in auste