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DTIC ADA062553: Aerospace Structural Metals Handbook. Volume 5. Supplement XI. Nonferrous Alloys

This nickel-base alloy, containing large additions of aluminum and titanium, achieves very high strength at elevated temperature. It has thus received considerable attention for application in components of high performance jet engines such as turbine blades, vanes and nozzles, and even integral turbine wheels. Because of the large quantities of strengthening elements included in the composition, the alloy is not hot worked, and is therefore used in the as-cast condition. Recently, however, there has been considerable development of a powder metallurgy product which permits working of the alloy. At high temperatures the powder-consolidated product becomes superplastic, thus opening many possibilities in fabrication-to-shape of wrought complex components.

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