Why don’t jet engines melt? These machines suck in air, compress it, mix it with fuel and burn it at temperatures beyond the melting point of most metals – yet they stay solid thanks to nickel-based superalloys packed with gamma-prime precipitates that lock dislocations, advanced cooling airflows and heat-resistant coatings that keep turbine blades just cool enough.
We also tour Rolls-Royce’s precision casting facility to see how single-crystal blades are grown by directional solidification, learn why blade geometry and internal cooling channels matter as much as material science, and get a quick history of how early Whittle-style engines evolved into today’s near-melt-proof powerhouses.
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