Jet engines don’t melt because they’re built like high-tech furnaces with integrated cooling—the massive front fan compresses incoming air (which cools downstream components), and clever internal air channels keep turbine temperatures manageable even when the exhaust soars above 1,500 °C.
On the materials side, engineers use nickel-based superalloys stuffed with tiny gamma-prime precipitates, cast blades as single crystals to sidestep weak grain boundaries, and leverage precision casting (shout-out to Rolls-Royce) to ensure blades stay strong under extreme stress. Add real-world torture tests (yes, they literally throw sand at running turbines) and you get metal parts that simply won’t give in to molten meltdown.
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