Short video to present the shape memory effect of a shape memory alloy.
In this case, this is a Ni-Ti spring. But the basic effect (not so spectacular) may be seen in many other alloys.
For the construction sector, iron-based shape memory alloys are a real alternative for strengthening of existing structures thanks to the shape memory effect and their low cost.
Video edition: Imalay Vilar (UIB)
![](https://i.ytimg.com/vi/VIHk-GMuizk/maxresdefault.jpg)