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Role of cobalt in nickel base superalloysThe effect of cobalt or substituting for cobalt on the mechanical properties of nickel-based superalloys is discussed. Waspaloy, UDIMET 700, and NIMONIC 115, which are representative of Ni-Cr-Co-Al-Ti-Mo superalloys having different gamma prime contents which are strengthened by a heavily alloyed matrix, coherent gamma prime precipitates, and carbides at the grain boundaries. Microstructure and in situ and extracted phase STEM micro-analysis were used to evaluate the three alloys.
Document ID
19830003016
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Jarrett, R. (Columbia Univ. New York, NY, United States)
Barefoot, J. (Columbia Univ. New York, NY, United States)
Tien, J. (Columbia Univ. New York, NY, United States)
Sanchez, J. (Columbia Univ. New York, NY, United States)
Date Acquired
August 11, 2013
Publication Date
October 1, 1982
Publication Information
Publication: NASA. Lewis Research Center COSAM (Conserv. Of Strategic Aerospace Mater.) Program Overview
Subject Category
Metallic Materials
Accession Number
83N11286
Funding Number(s)
CONTRACT_GRANT: NAG3-57
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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