{HEAD ~ Fabrication methods} are described for producing an integrally bladed rotor wherein {TAIL ~ single crystal blade portions} are securely metallurgically bonded to a polycrystalline disk 
{ HEAD ~ Fabrication methods } are described for producing an integrally bladed rotor wherein { TAIL ~ single crystal blade portions } are securely metallurgically bonded to a polycrystalline disk
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH