https://youtu.be/QtxVdC7pBQM?si=SMxCdPYqZf4-pIMU
6:12 a 300g turbine blade at full speed generates 20 tonnes of centripetal force.
8:57 great visualization of plastic deformation of a metal lattice using bubbles
13:48 turbine blades start as a wax mold
21:42 the optimal nickel alloy has enough blocks of gamma prime to block dislocations (fractures) but enough gamma structure to keep the metal ductile (resistant to cracking)
23:03 elements added to steel to impart various properties.
26:18 cooling of the molded blade is very gradual to tightly control the crystal structure - directionally solidified with grain crystals oriented in a favorable direction. 31:06 This gives incredible longevity to turbine engines and efficiency.
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