3 ms·
> Adding 0.5% scandium to aluminium greatly increases the metal's strength while maintaining its light weight, as well as raising its melting point by 800 °C s
by foobarian 6y ago
> Adding 0.5% scandium to aluminium greatly increases the metal's strength while maintaining its light weight, as well as raising its melting point by 800 °C so that, unlike ordinary aluminium, it can be welded.
Wait, what? That has got to be a typo. That would more than double the Al melting point of 655 C.
- apsec112 6y agoIt's not a typo, but you need much more than 0.5%. Here's a phase diagram: http://www.arc.nucapt.northwestern.edu/refbase/files/Royset-2005.pdf http://www.arc.nucapt.northwestern.edu/refbase/files/Royset-...