Abstract
The lubricant property of composite lubrication oils was studied through the friction and wear experiment of the A3 steel-GCr15 steel pairs on the ring-block wear testing machine. The composite lubrication oils were prepared from base oil added various content (0, 2%, 3%, and 4%) of organic anti-wear agent, which contains Nitrogen, Boron and Molybdenum. In order to research the influence of the base oil, the non-brand base oil was selected to compare with the brand one. The results show that adding the anti-wear agent can enhance lubricant property and improve the frictional and wear resistance of materials. When the anti-wear agent content reached 3% in the composite lubrication, the A3 steel-GCr15 steel pairs possess the lowest friction coefficient and wear rate. The lubricant property of the non-brand base oil can be enhanced by adding anti-wear agent , even better than that of the brand with the same concentration (3%).
Highlights
The lubricant property of composite lubrication oils was studied through the friction and wear experiment of the A3 steel-GCr15 steel pairs on the ring-block wear testing machine
The lubrications were prepared from brand base oil added the anti-wear agent of 0%, 2%, 3%, 4%, respectively, which were signed by the symbol 0-B, 2-B, 3-B and 4-B
In order to demonstrate the influence of the base oil, the non-brand base oil with the anti-wear agent was selected to compare with the brand oil
Summary
The friction and wear properties were studied on M-2000 ring-block wear testing machine under oil lubrication. The lubrications were prepared from brand base oil (named B lubrication) added the anti-wear agent of 0%, 2%, 3%, 4%, respectively, which were signed by the symbol 0-B, 2-B, 3-B and 4-B. In order to demonstrate the influence of the base oil, the non-brand base oil with the anti-wear agent (named N lubrication) was selected to compare with the brand oil. Where T is R is radius the of friction torque lower sample (N/m), which was recorded every (m), 2α is the contact angle of five the minutes, P is the load of upper sample with the cporuesnstienrgpatrhteasnudrfaμceiss(Nth)e, friction coefficient of A3 steel/ GCr15 pairs as a function. The wear rate of A3 steel sample, which is the rate of weight loss, was calculated by comparing its mass with an electronic balance (sensitivity 0.1mg) before and after friction. The worn surface morphology was observed by OLYMPUS BX51 System Microscope
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