Wear of 2024 Al-Mo-SiC composites under lubrication

The 2024 aluminum alloy reinforced with 15 vol.% SiC whisker and 15 vol.% molybdenum powder was fabricated using the powder metallurgy method. The pure alloy and composite pins were run against a 440C disk in a Falex-6 multispecimen friction and wear test machine at a sliding speed of 0.75 m s −1 (6...

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Bibliographic Details
Published in:Wear 1996-07, Vol.195 (1-2), p.100-105
Main Authors: Bai, Mingwu, Xue, Qunji, Ge, Qilu
Format: Article
Language:English
Subjects:
Additives
Aluminum matrix composites
Applied sciences
Contact of materials. Friction. Wear
Exact sciences and technology
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Molybdenum
Wear
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Summary:The 2024 aluminum alloy reinforced with 15 vol.% SiC whisker and 15 vol.% molybdenum powder was fabricated using the powder metallurgy method. The pure alloy and composite pins were run against a 440C disk in a Falex-6 multispecimen friction and wear test machine at a sliding speed of 0.75 m s −1 (600 rev min −) and applied loads of 100–800 N (5.73-45.80 MPa). When lubricated with liquid paraffin, the composites showed better anti-wear properties than the pure alloy. It is found that the composites exhibited anti-friction and wear-reducing properties with lubrication of sulphurized olefin additives. The synergistic effects of molybdenum with additives and the wear mechanism are discussed.
ISSN:0043-1648
1873-2577
DOI:10.1016/0043-1648(95)06808-2