Journal
EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS
Volume 59, Issue 3, Pages -Publisher
EDP SCIENCES S A
DOI: 10.1051/epjap/2012120083
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Funding
- National Natural Science Foundation of China [51105199, U1134003]
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In this study, arrayed magnetic films were fabricated on the surface of 45# steel (magnetic). The magnetic field distribution of the micro-magnet arrayed surface was studied. Magnetically controlled suspension - ferrofluids was used as lubricant, which can be adsorbed by magnet. The tribological performance of the arrayed surface affected by the factors of micro - magnet, i.e., area ratio (r), thickness of each magnetic film (t) and magnetized or not, was evaluated using a pin-on-disk test rig. The results suggest that the specimen with 5% area ratio of arrayed magnet is the best of tried ones for low friction at the load-speed conditions. Compared with unmagnetized one, the arrayed surface after magnetizing mainly presents obvious anti - friction properties. The higher magnetic intensity of the surface is, the better anti-friction performance it shows at higher sliding speed condition (0.062-0.188 m/s).
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