American Welding Society Forum
I'm sitting here reading through the site and I'm wondering,
What is the largest number of separate, deliberate alloying elements in one material that anyone's heard of (and can talk about...)??
IE: an alloy with 6 or 7 + additions of elements (C, Cr, Ni, Ti, Mo, Mg, W, Re.... ECT ect ect), but not the number of impurities.
Is there a limit on how many different elements will "fit" in one material?
The non metallurgist poking at things he doesn't know about,
I would say that 6 or 7 is rather modest. ER70S-2 has 6 listed itself. And its not exotic. I think nickel base alloys will generally see the most purposeful elemental additions as the manufacturers attempt to balance specific problems in severe corrosive services. Inmany insotnaces it hase ben foundthat strength can be improved by additional elements when increasin already existent elements would be detrimental to ductility or toughness.
I think as we see control of elements becoming more precise, and environments and services more challanging the number of elements in any given alloy family prposely added will rise.
"Is there a limit on how many different elements will "fit" in one material?"
Theoretically, why should there be?
In the powdered metals field they have been able to mix things that were traditionally considered incompatable, so My guess is the greatest number is probably growing.
Hmmm, sounds nifty.
Ill have to hunt around for more info.
Thank you both for replying
Waspaloy comes in with a slick 14
Inco 718 Jumps in front with 15
Nickel + Cobalt
Cb + Ta
Waspaloy seems like an intresting mix of elements, how much fun is that to weld?
Cb + Ta, niobium and tantalum?
wow, 718 seems to have a bit of all the most common industrial metals.
Is 718 still concidered a "steel" or is it in its own league? Im only asking because I see Iron as the balance..
I think my dad might have some 718 sheets somewhere. Ill have to ask him when he gets back from his vacation.
Thank you for the info :)
Both Inco 718 and Waspalloy can be a tad sluggish, especially if they have been through high temp cycles...., Heat treat/Annealing etc. engineering level precausitons are in order for this stuff.. But when it's properly prepped and fixtured it's not a problem.
The super alloy that really puts out the beauty beads is Haynes 25......... ::::Like buttah
Yeah, upon waking this morning i decided those pics really didnt need to be on the net anymore... im just making my self look bad :(
sorry and thanks again
You don't even want to know what that stuff costs
That bad eh?
Good thing dad kept the rest of it hidden from me... not that i was going to do anything with it anyways.
After all, what in the farm code (the backyard edition in my case...) has need for such an alloy...
Thanks for your input, and I really can weld better than whats showing in the pic... no really i promise!!! :)
The above mentioned alloys containing are either Ni-base or Ni+Co base alloys, and they are NOT considered steels. The addition of alloying elements to steel and to Ni-base alloys is carefully considered to achieve optimum performance in certain environments. In addition, formability factors into this and joining. Many of the original carbon steels and low alloy steels have now morphed into high strength low alloy steels that can be processed many different ways to achieve desired mechanical properties, corrosion resistance, forming and welding.
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