Why Don’t Jet Engines Melt? dives into how a jet engine works—from massive compressors and scorching combustion chambers to the turbine section—and asks the obvious question: with internal temps hotter than molten metal, why doesn’t everything just liquefy?
It turns out the magic is in the metallurgy and manufacturing. Turbine blades are made from nickel-based superalloys reinforced by tiny γ′ precipitates, grown as single crystals via precision casting, and riddled with internal cooling channels. Add heat-resistant coatings and clever crystal orientations, and you’ve got blades that survive brutal heat (and even sand ingestion) without turning to liquid.
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