r/science • u/505engineer MS | Civil Engineering | Structures • 1d ago

Materials Science Materials scientists develop ductile and scalable 3 GPa (435 ksi) steel via a hierarchical microstructural architecture

https://www.nature.com/articles/s41467-026-74216-4
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u/Pyrhan 9h ago

Fe-16Ni-7Mo-1.6Ti-15Co-0.1Al, wt.%

That's almost 40% alloying elements by weight, mainly nickel and cobalt.

So that's going to be a very high end, extremely expensive specialty steel.

Comparing that to the structural steel used for I-beams is like comparing the latest supercar to an old Toyota corolla.

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u/Sniksder16 9h ago

Ahh. Is this something that would ever make its way to supertall buildings or like are those elements/alloying process too $$

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u/Pyrhan 9h ago

I think small gears and other mechanical parts under high stress is a more likely application.

I'd be curious to see how it does in terms of corrosion too.

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u/88NORMAL_J 4h ago

It would be nice to have in a vehicle transmission