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Recrystallization as a controlling process in the wear of some f.c.c. metalsDetailed examination of copper specimens after sliding against 440 C steel in liquid methane at speeds up to 25 m/s and loads of up to 2 kg showed the metal comprising the wear surface to possess a fine cell recrystallized structure. Wear proceeded by the plastic shearing of metal in this near surface region without the occurrence of visible metal transfer. A dynamic balance between the intense shear process at the surface and the nucleation of recrystallized grains was proposed to account for the behavior of the metal at the wear surface. Sliding wear experiments were also conducted on Ag, Cu-10% Al, Cu-10% Sn, Ni and Al. It was found that low wear and the absence of heavy metal transfer were associated with those metals observed to undergo recrystallization nucleation without prior recovery.
Document ID
19770038547
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Bill, R. C.
(NASA Lewis Research Center Cleveland, OH, United States)
Wisander, D.
(NASA Lewis Research Center Seals Section, Cleveland, Ohio, United States)
Date Acquired
August 9, 2013
Publication Date
February 1, 1977
Publication Information
Publication: Wear
Volume: 41
Subject Category
Metallic Materials
Accession Number
77A21399
Distribution Limits
Public
Copyright
Other

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