NASA NTRS ยท 19770025335
Directionally solidified eutectic gamma plus beta nickel-base superalloys
Abstract
A directionally solidified multivariant eutectic gamma + beta nickel-base superalloy casting having improved high temperature strength and oxidation resistance properties is provided. This comprises a two phase eutectic structure containing, on a weight percent basis, 5.0-15.0 tungsten, 8.5-14.5 aluminum, 0.0-35.0 cobalt and the balance being nickel. Embedded within the gamma phase nickel-base matrix are aligned eutectic beta phase (primarily (NiCo)Al reinforcing lamellae.
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Jackson, M. R.. 1977-08-30. Directionally solidified eutectic gamma plus beta nickel-base superalloys. https://ntrs.nasa.gov/citations/19770025335
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