Development Trends for Wrought High Temperature Turbine Rotors

The feasibility of producing high performance wrought integrally bladed turbine rotors from the strongest high temperature super-alloys on an economical basis has been demonstrated. Through the use of available advanced processing techniques, it is now possible to produce these rotors with an unprecedented combination of mechanical properties in the disk or rotor and blades. This technology base coupled with the potential for significant improvement in the high temperature capability of super-alloys in the next few years offers opportunities for super-alloy turbine rotors that could be competitive with first generation ceramic rotors.