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Dual alloy interface stabilityPowder metallurgy dual alloy fabrication is applied to combinations of superalloys having a high iron, and low strategic metal content, with standard nickel base superalloys, containing the strategic metals chromium, cobalt, and columbium. The possibility of combining Alloy 901 (12 percent Cr, 36 percent Fe, 0 percent Co, and 0 percent Cb) with turbine disk alloys Rene 95 (13 percent Cr, 8 percent Co, and 4 percent Cb) or low carbon astroloy (L.C.A.; 15 percent Cr, 17 percent Co, and 0 percent Cb) is investigated. Preliminary results for combinations show that a strong interface with rapid diffusion is obtained between alloys and that the standard heat treatments for either alloy may be satisfactory.
Document ID
19830003027
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Harf, F. H.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 11, 2013
Publication Date
October 1, 1982
Publication Information
Publication: COSAM (Conserv. Of Strategic Aerospace Mater.) Program Overview
Subject Category
Metallic Materials
Accession Number
83N11297
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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