Accession Number : ADP004215

Title :   Gas Turbine Engine Design Considerations as Related to Alloys of High Critical Element Content,


Personal Author(s) : Sprague,R. A.

Report Date : APR 1984

Pagination or Media Count : 6

Abstract : The primary payoff in selection of wrought/cast alloys containing strategic elements is performance, not cost. For example, in commercial engines, the temperatures that parts are exposed to have increased steadily in an effort to improve specific fuel consumption. In military engines, higher operating temperatures are usually governed by efforts to improve thrust to weight ratio. This paper will review the trade-offs that a designer must make in the selection of materials for specific component applications. Emphasis will be placed on discussion of what options are available in reducing the strategic material content of the engine system while still achieving performance and cost objectives. (Author)

Descriptors :   *Alloys, *Manufacturing, *Gas turbines, *Strategic materials, Wrought metals, Castings, Chemical composition, Selection, Trade off analysis, Decision making, Superalloys, Chromium, Cobalt, Tantalum, Symposia

Distribution Statement : APPROVED FOR PUBLIC RELEASE