The materials science and engineering behind Iron Man’s suit is quite interesting!
💠His suit consists primarily of Nitinol, a nickel-titanium alloy which is lightweight and possesses shape memory properties.
These properties give rise to “healing” abilities after taking damage and allow Tony Stark to fly quicker and more efficiently.
💠 The suit also could incorporate carbon fiber and graphite due to these materials’ strength, low weight, and temperature tolerance.
This would be especially useful to ensure his rocket boots don't burn his feet.
💠 In Iron Man 2, Tony Stark also created a new element altogether to replace his palladium arc reactor, which was slowly poisoning him.
I think it’s fair to say that if Tony existed in today’s world, he’d be a Materials Engineer!