Effect of Nano-palygorskite Additive in Base Oil on Anti-wear and Self-repairing Properties of 45~# Steel Tribo-pair
Year: 2012
Type: article
Abstract: The 150N base oil containing 2% and 4% mass fraction of nano-palygorskites modified with KH550 as additive were prepared.The anti-wear,friction-reducing and self-repairing behaviors of nano-palygorskites as additive in base oil were observed on the MMU-10G abrasive-wear tester.The wear loss of the sample was studied by electronic balance(EB).The morphographies of the worn surfaces were analyzed by means of scanning electron microscopy(SEM) and optical microscope.Elemental analysis was performed using an energy-dispersive X-ray(EDX) microanalyzer.The results show that the lubricating base oil containing 2% mass fraction of nano-palygorskites as additive has very weak self-repairing performance to 45# steel tribo-pair,the wear loss decreases limited and the anti-wear only occurs in early running-in stage;Lubricating base oil containing 4% mass fraction of nano-palygorskites as additive exhibits better anti-wear and self-repairing performance.Total wear loss decreases observably as high as 26.5% compared to that of pure base oil.Self-repairing films made up of characteristic elements of palygorskite in patchy distribution are observed on the surface of the sample.
Source: Cailiao gongcheng
Author: Chen Jianhai
Institution: Guizhou University
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $581
OpenAlex ID: W2386263136