Sliding wear of an Al alloy SiC whisker composite

Journal Article · Wed Jul 01 00:00:00 EDT 1992 · ASLE Transactions (American Society of Lubrication Engineers); (United States)

DOI:https://doi.org/10.1080/10402009208982146· OSTI ID:7162429

Pan, Y M; Fine, M E; Cheng, H S ^[1]

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1. Northwestern University, Evanston, IL (United States)

The tribological properties of a well-studied powder metallurgy metal-matrix composite, i.e., 20 volume percent SiC whiskers in 2124-T6 Al alloy matrix, were measured for the three principal orthogonal orientations under dry and lubricated sliding contacts. The sliding wear mechanisms were identified through analyses of wear tracks and subsurface microstructure by scanning and transmission electron microscopy techniques. The results for sliding wear of this 2124 Al-SiC whisker composite indicate a much higher wear when dry than when lubricated, and a strong wear anisotropy, which is correlated with the areal fraction of SiC whiskers on the wear plane. SEM and TEM analyses show direct evidence of adhesive wear through plastic deformation for dry sliding and abrasive wear through plowing and polishing for lubricated sliding. 20 refs.

• OSTI ID: 7162429
• Journal Information: ASLE Transactions (American Society of Lubrication Engineers); (United States), Journal Name: ASLE Transactions (American Society of Lubrication Engineers); (United States) Vol. 35:3; ISSN 0569-8197; ISSN ASLTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALLOYS
ALUMINIUM ALLOYS
ALUMINIUM BASE ALLOYS
CARBIDES
CARBON COMPOUNDS
COMPOSITE MATERIALS
CRYSTALS
DEFORMATION
ELECTRON MICROSCOPY
FRICTION
LUBRICATION
MATERIALS
MECHANICAL PROPERTIES
METALLURGY
MICROSCOPY
MONOCRYSTALS
POWDER METALLURGY
REINFORCED MATERIALS
SCANNING ELECTRON MICROSCOPY
SILICON CARBIDES
SILICON COMPOUNDS
SLIDING FRICTION
TRANSMISSION ELECTRON MICROSCOPY
TRIBOLOGY
WEAR RESISTANCE
WHISKERS