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superalloy
This is a highly specialized technical term used primarily in materials science, aerospace engineering, and metallurgy. It is not a word used in casual conversation unless the speaker is discussing high-end engineering or industrial manufacturing. The term implies a level of performance that exceeds standard alloys, specifically regarding the ability to resist "creep" (slow deformation under stress) at temperatures close to the material's melting point.
In a professional context, "superalloy" is almost always categorized by its base element, such as nickel-based, cobalt-based, or iron-nickel-based. Using the term without specifying the base metal usually refers to the general class of materials rather than a specific product.
While "alloy" is a broad term for any mixture of metals, "superalloy" carries a connotation of extreme durability and high cost. It is used to describe materials that are "over-engineered" for the most hostile environments imaginable, such as the interior of a jet engine or a nuclear reactor.
Meanings
Examples
Nickel-based superalloys are essential for jet engine turbines.
We need a superalloy that can withstand extreme heat without warping.
The turbine blade is cast from a single-crystal superalloy.
I wonder if this new superalloy will improve fuel efficiency.
Cobalt superalloys offer excellent resistance to wear and corrosion.
The engineer explained why a standard steel alloy would fail where a superalloy succeeds.
This material is a high-performance superalloy used in rocket nozzles.
Can we substitute this superalloy with a cheaper alternative?
Can we substitute this superalloy with a cheaper alternative?
The discovery of this superalloy revolutionized high-temperature metallurgy.
The discovery of this superalloy revolutionized high-temperature metallurgy.