Jet engines work at a higher temperature that the melting point of Titanium Superalloy so how do they not melt?
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Not to mention , the blade is not directly in the flame, but some way down stream of it (in context of an engine). So it is not in the hottest part of the engine. Engineers spend a lot of time working on the shape of the flame as well to stop it touching the side of the combustion chamber. Sometimes things block and you end up with a misshapen flame that melts things it’s not supposed to.
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