Applications of high-temperature powder metal aluminum alloys to small gas turbines

Journal Article · Tue Mar 01 00:00:00 EST 1983 · J. Met.; (United States)

DOI:https://doi.org/10.1007/BF03338225· OSTI ID:5710612

Millan, Jr, P P

Advanced powder metal (P/M) aluminum alloys currently are being developed using the concepts of rapid solidification and mechanical alloying technologies that offer the potential for extending the use of aluminum for high-temperature applications up to 650/sup 0/F. The Garrett Turbine Engine Company high-temperature aluminum alloy program has identified compressor impellers for small gas turbines as the nearest term potential for applications of these advanced alloy systems. Substitution of aluminum impellers for titanium for steel offers the benefits of reduced component cost, weight savings, and rotating group inertia. This paper discusses the Garrett program and describes the engine systems that have been identified as potential applications for high-temperature P/M aluminum impellers. The design criteria for these compressor impellers have been defined and serve as development goals for this program. A review of candidate alloy systems is made and current material evaluation results are presented.

• OSTI ID: 5710612
• Journal Information: J. Met.; (United States), Vol. 35:3
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM BASE ALLOYS
POWDER METALLURGY
GAS TURBINES
MANUFACTURING
GAS TURBINE ENGINES
HIGH TEMPERATURE
POWDERS
STEELS
TITANIUM ALLOYS
ALLOYS
ALUMINIUM ALLOYS
ENGINES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
IRON ALLOYS
IRON BASE ALLOYS
MACHINERY
METALLURGY
TURBINES
TURBOMACHINERY
360101* - Metals & Alloys- Preparation & Fabrication