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A key business initiative for jet engine manufactures is to reduce the engine development cycle time, Cycle time reductions lead to reduced introduction costs, and allow the manufacturer to get their product to market before their competitors. Two materials evaluation techniques are presented that allow for significant reductions in cost and time during the development of new turbine components. The on-cooling tensile test produces data that, when coupled with thermal/stress models, allows for the design of a forging shape and/or heat treatment parameters that preclude quench cracking and the accompanying manufacturing productivity losses. The two-step cooling path technique allows for the measurement of critical mechanical properties from small coupons, instead of heat treating and evaluating a full scale forging.

the distribution of particle sizes on the kinetics of densification. The analytical model also suggests HIP conditions for more uniform deformation of all powder particles.

Superalloy powders of an IN 792 plus Hf type alloy produced from Rapid Solidification (RSR) and Argon Atomized process (AA) techniques are analyzed and compared according to particle size. Characterization of powders include surface and interior morphology, particle size and void distribution, cooling microstructures, microcrystallinity, microsegretation and especially dendrite arm spacing and cooling rates. It is found that, for the alloy studied, RSR cooling rates are a factor of only two to four greater than those for AA, regardless of particle size.