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- W2161192752 abstract "Improved turbine engine performance can be obtained by incorporating advanced materials which can tolerate higher turbine inlet temperatures. Higher inlet temperature in itself does not guarantee improved performance if a concomitant increase in cooling air is required. Such parasitic losses would reduce efficiency and can actually result in a net decrease in overall performance. Therefore the greatest likelihood for achieving a significant performance boost or durability increment will be obtained through a coordinated program that strives to improve both airfoil material temperature capability while maintaining or improving cooling efficiency. This paper describes a manufacturing process under development by General Electric which addresses these issues. In addition, Rybinsk Motor-Building Bureau, Russia, has been independently pursuing a similar technology and has been instrumental in demonstrating proof of concept of several key technological issues. Under development is a fabrication scheme for producing advanced turbine airfoils which will allow the use of novel materials and the flexibility of tailoring the microstructures while maintaining or improving cooling efficiency. In addition, these goals are targeted to be met at a cost which is comparable to current high performance airfoils. The process involves using electron beam physical vapor deposition for applying an outer skin on an inner spar made of conventionally cast single crystal Ni-base superalloy or an intermetallic." @default.
- W2161192752 created "2016-06-24" @default.
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- W2161192752 date "1996-01-01" @default.
- W2161192752 modified "2023-09-26" @default.
- W2161192752 title "Advanced Airfoil Fabrication" @default.
- W2161192752 cites W1963688936 @default.
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- W2161192752 doi "https://doi.org/10.7449/1996/superalloys_1996_523_529" @default.
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