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Tribological behavior of 440C martensitic stainless steel from -184 C to 750 CCharacterization of the coefficient of friction and wear rate of 440C stainless steel is needed to understand the effects of frictional heating in the bearings of the High Pressure Oxygen Turbopump of the Space Shuttle Main Engine. The coefficient of friction and wear rate have been measured over a range of temperature varying from liquid oxygen temperature (-184 C) to 750 C. The normal load has also been varied resulting in a variation of Hertzian stress from 0.915 to 3.660 GPa while the surface velocity has been varied from 0.5 to 2.0 m/s.
Document ID
19930067265
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Slifka, A. J.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Compos, R.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Morgan, T. J.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Siegwarth, J. D.
(NIST, Chemical Engineering Div., Boulder CO, United States)
Chaudhuri, Dilip K.
(Tennessee State Univ. Nashville, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1992
Publication Information
Publication: In: Advances in cryogenic engineering - Materials. Vol. 38A; Proceedings of the 9th International Cryogenic Materials Conference, Univ. of Alabama, Huntsville, June 11-14, 1991 (A93-51251 22-23)
Publisher: Plenum Press
Subject Category
Metallic Materials
Accession Number
93A51262
Distribution Limits
Public
Copyright
Other

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