Tribological performance of graphite containing tin lead bronze–steel bimetal under reciprocal sliding test

As a solid self-lubricating material to serve under heavy load and low velocity, graphite containing tin lead bronze–steel bimetal composites were prepared using the powder metallurgy (P/M) technique. Effects of graphite content on tribological performance under reciprocal sliding were studied using...

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Bibliographic Details
Published in:Tribology international 2011-02, Vol.44 (2), p.101-105
Main Authors: Ru-Tie, Liu, Xiang, Xiong, Fu-Sheng, Chen, Jin-zhong, Lu, Li-Ling, Hong, Yi-Qing, Zhang
Format: Article
Language:English
Subjects:
Applied sciences
Bimetal
BIMETALS
BRONZES
COMPOSITES
Exact sciences and technology
Friction
Friction, wear, lubrication
GRAPHITE
HARDNESS
LUBRICATION
Machine components
Mechanical engineering. Machine design
Micro-friction
Optimization
Reciprocal slide
Sliding
Solid self-lubrication
STEELS
Tin
TRIBOLOGY
Wear resistance
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Summary:As a solid self-lubricating material to serve under heavy load and low velocity, graphite containing tin lead bronze–steel bimetal composites were prepared using the powder metallurgy (P/M) technique. Effects of graphite content on tribological performance under reciprocal sliding were studied using the UMT-2MT tribo-meter. The optimal performance of average friction coefficient, maximum friction coefficient, friction coefficient amplitude and wear resistance can be achieved at the graphite content of ∼3 wt%. Appropriate graphite content and hardness are the two most crucial factors to achieve a good quality lubricating film on the worn surface and hence the desired solid lubrication performance. ► Effects of graphite content on tribological performance under reciprocal sliding were studied using the UMT-2 MT tribo-meter in order to know the behavior of bimetal under heavy load and low velocity conditions. ► Bimetals with 3 wt% graphite content have very good comprehensive tribological performance. ► Appropriate graphite content and hardness of the materials are the two most crucial factors to achieve the desired solid lubrication performance.
ISSN:0301-679X
1879-2464
DOI:10.1016/j.triboint.2010.09.012