An alloy of iron and aluminium is as good as titanium, at a tenth of the cost.

 

bad link.

 

Link works for me, but not too many details. On searching Google, it seems the strength to weight ratio is as good or better than titanium. I would like to see how it performs at high temperatures and over time. How does it compare to titanium for corrosion? Can it be welded? (Apparently, some aluminum-steel alloys can be welded.) How easily is it machined?

Of course, it is a preliminary report and is certainly well worth watching.

John

 

Sounds like Rearden Metal.

 

I wonder what its performance could be in marine environment.

My experience is related just to small parts where Aluminium does not seem to stand well. Also I worked in full aluminium "wave piercing" ferries but they were brand new when I met them.

 

Ayn Rand is over my head; I think this is yet another derivative from Roswell.

 

bad link.

Here's a different link.

 

Link works for me, but not too many details. On searching Google, it seems the strength to weight ratio is as good or better than titanium. I would like to see how it performs at high temperatures and over time. How does it compare to titanium for corrosion? Can it be welded? (Apparently, some aluminum-steel alloys can be welded.) How easily is it machined?

Of course, it is a preliminary report and is certainly well worth watching.

John

And if it can be welded... how well does its properties hold up?

 

And here's yet another different source for the same news.