The joint effect of surface microtopography and near-surface structure on microcontact conditions: Progress report for period September--November 1988

Technical Report · Tue Nov 01 00:00:00 EST 1988

OSTI ID:6408098

McCool, J I

Surface documentation work has been completed on 1/3 of the 27 ceramic specimens that will be tested under this program. Indentation tests have been completed on another nine specimens. The indentation test results were examined critically and the constant in Auerbach's formula was deduced separately for each specimen. A tendency for this constant to be smaller for the polished specimens is noted. A preliminary appraisal is made of the relation between the measured wear values from the 9 pin-on-disk tests that have been completed to date and the predicted mean real contact area of a different but comparable set of specimens. The lowest measured wear was found to be associated with the lowest computed mean real contact pressure, but no more extensive trend could be discerned. Specimens have been obtained for Phase II testing and surface treatments and finishes have been tentatively selected. Microcontact model modifications needed for interpretation of Phase II tests are discussed. 2 refs., 2 figs., 1 tab.

• Research Organization: SKF Industries, Inc., King of Prussia, PA (USA). SFK Tribonetics
• DOE Contract Number: AC02-87CE90001
• OSTI ID: 6408098
• Report Number(s): DOE/CE/90001-3; ON: DE89008516
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CERAMICS
SURFACE PROPERTIES
COATINGS
FRACTURES
MEASURING METHODS
PROGRESS REPORT
R CODES
ROUGHNESS
STEELS
TRIBOLOGY
WEAR
YOUNG MODULUS
ALLOYS
COMPUTER CODES
DOCUMENT TYPES
FAILURES
IRON ALLOYS
IRON BASE ALLOYS
MECHANICAL PROPERTIES
360203* - Ceramics
Cermets
& Refractories- Mechanical Properties