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Precipitation in an as-atomized nickel-based superalloy powder

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Abstract

The microstructure of argon-atomized René 95 powder has been characterized by a combination of transmission and scanning-transmission electron microscopy, and energy dispersive X-ray analysis. Specimen preparation techniques have been developed in order to obtain samples suitable for such analyses, and similar but complementary micro-structural features are revealed by each technique. Dendritic and cellular structures, both on the surface of the powder particles and in the interior, are delineated by fine precipitates. These have been identified as MC-type carbides, containing Nb and Ti, with some Cr, Ni, Mo and W.

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Authors and Affiliations

  1. Corporate Research and Development, General Electric Company, PO Box 8, 12301, Schenectady, New York, USA

    Ann M. Ritter & Michael F. Henry

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  1. Ann M. Ritter
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  2. Michael F. Henry
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Ritter, A.M., Henry, M.F. Precipitation in an as-atomized nickel-based superalloy powder. J Mater Sci 17, 73–80 (1982). https://doi.org/10.1007/BF00809036

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  • DOI: https://doi.org/10.1007/BF00809036

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