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Ferrographic analysis of wear debris generated in accelerated rolling element fatigue testsThe types and quantities of wear particles generated during accelerated ball rolling contact fatigue tests were determined. Ball specimens were made of AMS 5749, a corrosion resistant, high-temperature bearing steel. The lubricant was a super-refined naphthenic mineral oil. Conditions included a maximum Hertz stress of 5.215 times 10 to the 9th power Pa and a shaft speed of 10,000 rpm. Four types of wear particles were observed; normal rubbing wear particles, fatigue spall particles, spheres, and friction polymer.
Document ID
19770025344
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Jones, W. R., Jr. (NASA Lewis Research Center Cleveland, OH, United States)
Parker, R. J. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 3, 2013
Publication Date
October 1, 1977
Subject Category
Metallic Materials
Report/Patent Number
NASA-TM-73715
E-9260
Report Number: NASA-TM-73715
Report Number: E-9260
Meeting Information
Meeting: Joint Lubrication Conf.
Location: Kansas City, MO
Country: United States
Start Date: October 3, 1977
End Date: October 5, 1977
Sponsors: ASME, Am. Soc. of Lubrication Eng.
Accession Number
77N32288
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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