Power metallurgy approaches to high temperature components for gas turbine enginesWork conducted by NASA and NASA contractors on prealloyed superalloy powders and materials strengthened by oxide dispersion is reviewed. Fabrication, tensile strength, superplasticity, grain growth control, stress rupture life, and grain-size and dispersion-level effects are covered. Distinct strength advantages of powder metallurgy superalloys over conventional wrought alloys are noted.
Document ID
19740053319
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Probst, H. B. (NASA Lewis Research Center Cleveland, Ohio, United States)