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Carbides in iron-rich Fe-Mn-Cr-Mo-Al-Si-C systemsThe optimization of high carbon iron-base superalloy properties with duplex microstructure gamma + M7C3 carbide requires analysis in the context of a seven-component system. Data are first provided here for the Fe-Mn-Cr-Mo-C quinary system, at 30 at. pct carbon. A characterization of competing carbides, according to a pseudoternary phase diagram at 35 wt pct iron, is made from isothermal sections. It is noted that while M7C3 and M3C carbides' occurrences are respectively favored at the Cr and Mn corners, the M2C carbide and molybdenum cementite are predominant with increasing amounts of Mo. Lattice parameters are reported for the various carbides.
Document ID
19840044028
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Lemkey, F. D.
(United Technologies Research Center East Hartford, CT, United States)
Gupta, H.
(United Technologies Research Center East Hartford, CT, United States)
Nowotny, H.
(United Technologies Research Center East Hartford, CT, United States)
Wayne, S. F.
(Connecticut, University Storrs, CT, United States)
Date Acquired
August 12, 2013
Publication Date
March 1, 1984
Publication Information
Publication: Journal of Materials Science
Volume: 19
ISSN: 0022-2461
Subject Category
Metallic Materials
Accession Number
84A26815
Funding Number(s)
CONTRACT_GRANT: NAG3-271
Distribution Limits
Public
Copyright
Other

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