Why are Superalloys so Special

Well, if superalloys are so important to technology, they must have some unique property! What is it?

Unfortunately, the definition of superalloys fails a bit here. For the sake of simplicity, every time I say “superalloy” in this article, you can assume I mean “nickel-based superalloy.”

Nickel-based superalloys have an amazing microstructure that gives the material excellent high-temperature properties, but there are other alloy systems that are called “superalloys” simply because they have good high-temperature properties (without the special microstructure).

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