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Estimation of gamma phase composition in nickel-base superalloys

  • Alloy Phases and Structure
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Abstract

The gamma-gamma prime region of the Ni−Al−Cr−Ti system at 750°C has been analyzed through the use of phase rule principles and analytic geometry to allow estimation of gamma phase composition when the composition of a two-phase quaternary alloy is known. By application of currently used phase computation methods with the above calculation, the gamma phase composition of several nickel-based superalloys was estimated and found (except for tungsten) to be in good agreement with compositions for these alloys as reported in the literature.

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Authors and Affiliations

  1. Materials and Structures Division, Lewis-Research Center, National Aeronautics and Space Administration, Cleveland, Ohio

    Robert L. Dreshfield (Research Metallurgist)

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  1. Robert L. Dreshfield
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Dreshfield, R.L. Estimation of gamma phase composition in nickel-base superalloys. Metall Trans 2, 1341–1346 (1971). https://doi.org/10.1007/BF02913357

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  • DOI: https://doi.org/10.1007/BF02913357

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