Effect of Surface Texturing on Organic Carbon Nanotubes Tribological Performance on Sliding Contact Lubrication
Lecture Notes in Mechanical EngineeringProceedings of the 3rd Malaysian International Tribology Conference(2022)
摘要
The tribological effect of organic anti-wear additive on a sliding steel plate of different surface texture (plane and dimple surfaces) was investigated. The organic Eichhornia crassipes carbon nanotubes (EC-CNTs) was formulated from biomaterial of Eichhornia crassipes (EC). The experiment for tribological enhancement was conducted in terms of friction coefficient, wear resistance and tribo-film mechanism. The effect of surface texturing on EC-CNTs towards reducing friction and wear was investigated using Pin on flat tribo-tester employing base rapeseed oil (BRO) as virgin lubricant. The results evidently showed that surface texturing significantly contribute in reducing friction and wear. The findings further revealed that, a dimple surface with EC-CNTs and without EC-CNTs minimizes friction and wear compared base oil under plane steel texture. Under 100 N and 5 Hz, lubricated surface with EC-CNTs + BRO (dimple surface), effectively reduced friction coefficient to about 52% and 38% against base oil under plane and dimple surfaces respectively. The wear scar diameter reduction for EC-CNT + RO sliding on dimple surface under 100 N and 5 Hz was 44.4% and 34.9% compared to BRO under plane and dimple surfaces respectively. The key reason for the friction and wear reduction when using surface texturing is attributed to its micro-trap for wear debris and the micro-reservoirs for lubricant retention.
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关键词
Surface texturing (dimple),EC-CNTs additive,Friction reduction,Friction coefficient
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