Metallurgy: Can Tungsten, Iridium, Titanium, Molybdenum, Tantalum, & Pure Silver mix after melting?

[deleted-734593]

The 6 metals in equal amounts. Through the melting method in a foundry. Not the powder method. Or will this end up not mixing and having cracks due to not adhering to the Hume-Rothery rules? And if not an alloy then what will happen once all 6 are put in a foundry and melted together? Or if in 6 separate foundries and then poured all in together in a 7th foundry?

Purpose is to make a ring.

[theborg]

metallurgyask,

Thank you for the question. As this forum is primarily for providing advice/help for science fair projects, I have to ask if this question is in relation to a science fair project. If so, can you provide more detail on the project and/or experiment?

[deleted-734593]

Well, it's just to make a ring out of it. I haven't figured out the entire plan on how to mix all 6 properly because some of these can melt in a crucible but Tungsten is going to have be melted with electricity. I suppose the other lower-melting point metals than can be melted in one crucible would have to be poured quickly on to the Vacumm Arc Melting furnace. I'm just not sure yet if the logistics work but I'm more concerned if all 6 metals will adhere to the Hume-Rothery rules. Apparently, if they don't adhere to it, they won't truly mix. They may layer on top of each other but won't truly mix if they don't adhere to the Hume-Rothery rules.

Would melting together equal parts of Tungsten, Iridium, Tantalum, Molybdenum, Rhodium, Niobium create a substitutional solid solution or become intermetallic?

I think intermetallic means, in this case, they won't fully mix so you'll see layers and streaks of some of the metals not actually mixed together with the rest. The solid solution would be them mixed like an actual alloy or something.