Just saw a blade for Boeing 787 and it said:
"Titanium turbine blades need to endure temperatures at least 400C degrees above the material's melting point and withstand forces equivalent to a double decker bus hanging from the tip. In order to withstand this extreme heat, a titanium alloy is grown as a single crystal in a vacuum furnace. This creates a complex series of air passages that provide the necessary cooling when the blades are in
operation."
May be above explained it but how can human being make something exceed's its melting point let alone by 400C!?
Found it funny that this amazing process is called Superplastic forming.