Advanced P/M technology for aerospace
The current Air Force effort in P/M involves use of hot isostatic pressing (HIP) or extrusion techniques to consolidated powders. The consolidated ingots are then conventionally processed to yield the desired shape. Progress toward the goal of net or near net shapes has been made, but more development work is still needed. The overall view of the application of P/M to airframe engine and structural components in the U.S. Air Force must be considered to be very promising. (1) When compared with cast or wrought aerospace materials, P/M technology offers equivalent mechanical properties and more homogeneous metallurgical structure. (2) High quality powders are necessary for the production of structural components for Air Force engine and airframe applications. The P/M industry can presently supply the required quality for prealloyed superalloy powders, but prealloyed titanium powders which are free of contaminants and excess interstitial gas pickup are not yet available from the P/M industry. Prealloyed aluminum powders have not yet been developed to the extent that production of aerospace structures can be considered. (3) An untapped potential of P/M technology is the development of aerospace alloys which are tailored to the consolidation process to allow optimum mechanical properties to be achieved. Further development is required to achieve this potential.
- OSTI ID:
- 7365502
- Journal Information:
- Prog. Powder Metall.; (United States), Vol. 31; Conference: National powder metallurgy conference, Atlanta, GA, USA, 13 May 1975; Other Information: See CONF-750597--
- Country of Publication:
- United States
- Language:
- English
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