Haynes 230 alloy melting and pouring

[foundrydude]

Hello All,
Do any of the great ones out there have any experience with melting and pouring Haynes 230 alloy? Problem is the loss of Lanthanum, which is .005 - .05% concentration. Material is purchased from Haynes corp as machining bar, but loses most if not all of the contained Lanthanum when melting in traditional superalloy vacuum casting device. Some have suggested to use air melting type furnace with liquid argon protection from atmosphere, and making a late addition of Nickel-boron, just prior to pouring the molds.
Thanks!

 

[metengr]

I would talk directly with Haynes.

 

[TripleG1983]

Have you spoken with castings technology international they probably have experience in making these complex super alloys.

 

[EdStainless]

First of all the casting chemistry is different from the wrought chemistry. You need to learn those differences.
You also don't start by melting the final composition,some of the additions need to be made later. Yes, these are often melted from master alloy, but that is not the same as finished bar.
Yes, you need to melt in vacuum or argon.

Keeping the carbon down and reactive metals up is a real trick with these grades.

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