1. The problem statement, all variables and given/known data We've been given the question, How do memory metals work? 2. Relevant equations N/A 3. The attempt at a solution I know it seems like a simple question, but we have kind of been thrown into the deep end. I have some understanding that it's to do with the alloy's structure? I've read around and seen that it has something to do with the transition from the martensite phase to the austenite phase, but could somebody please explain in more detail?