Shape memory alloy
Shape Memory Alloys (SMA), referred to as the shape of alloy, is a heating in the temperature can completely eliminate its deformation at a lower temperature, to restore its original shape before the deformation of the alloy material. In addition to the above-mentioned shape memory effect, another unique property of this alloy is the "pseudo-elasticity" (also known as "superelasticity"), which occurs in the high temperature (austenitic state) Carrying a recoverable strain that is several times or even several times higher than the average metal. These unique properties of shape memory alloys are due to their unique internal solid phase transition-thermoelastic martensitic transformation. ...