A class of high-performance alloys specifically engineered for excellent mechanical strength, resistance to thermal creep deformation, and resistance to oxidation. They typically have a base alloying element of nickel, cobalt, or nickel-iron. These metals are heavily utilized in aerospace turbine engines and industrial gas turbines where operating temperatures approach the melting point of the material.
Heard on the job
The new turbine blades are cast from a nickel-based superalloy to handle the extreme exhaust temps.
Insider tip
When machining a superalloy, expect rapid tool wear and high cutting forces due to their tendency to work-harden immediately upon cutting.
Also heard as
- high-performance alloy