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1、苯甲酸 硬脂酸钛基润滑脂摩擦磨损性能研究AbstractThe friction and wear properties of benzoic acid and titanium-based lubricating grease were investigated using a four-ball tester under different test conditions. The results showed that the maximum welding load of the lubricating grease was significantly improved compare
2、d with that of benzoic acid. In addition, the titanium-based lubricating grease had better performance under high-speed, high-temperature and heavy-load conditions. Scanning electron microscopy (SEM) was employed to observe the surface morphology of the friction pairs. The SEM images revealed that t
3、he lubricating grease formed a dense and uniform boundary film on the friction surface, which effectively reduced the wear of the friction pairs. The energy-dispersive X-ray spectroscopy (EDS) analysis showed that the boundary film was mainly composed of TiO2, which had excellent anti-wear and anti-
4、friction properties. The study provides a theoretical basis for the development and application of high-performance titanium-based lubricating grease.IntroductionWith the rapid development of modern machinery and equipment, the performance requirements for lubricating grease are becoming increasingl
5、y high. Under harsh working conditions such as high speed, heavy load, and high temperature, traditional lubricating grease often loses its lubrication and protection effect, which leads to serious wear and damage to mechanical parts. Therefore, the development of new lubricating grease with excelle
6、nt performance has become an urgent task. In recent years, titanium-based lubricating grease has attracted much attention due to its excellent anti-wear and anti-friction properties. In this study, benzoic acid and titanium-based lubricating grease were used to investigate their friction and wear pr
7、operties using a four-ball tester, and the morphology and composition of the friction pairs were analyzed.ExperimentMaterialsThe materials used in this experiment were benzoic acid and titanium-based lubricating grease.Testing EquipmentThe friction and wear properties of the two lubricants were test
8、ed using a four-ball tester. The test parameters were as follows: test load 40 kg, rotational speed 1450 r/min, duration 60 min, and test temperature 75C.Analysis MethodsScanning electron microscopy (SEM) was utilized to observe the surface morphology of the friction pairs, and energy-dispersive X-r
9、ay spectroscopy (EDS) was used to analyze the composition of the boundary film.Results and DiscussionEffect of Lubricants on Maximum Welding LoadThe maximum welding load of the friction pairs was tested under different test conditions. The results showed that the maximum welding load of the titanium
10、-based lubricating grease was significantly improved compared with that of benzoic acid (Figure 1).Figure 1. Maximum welding load of benzoic acid and titanium-based lubricating greaseEffect of Lubricants on Friction Coefficient and Wear Scar DiameterFigure 2 shows the friction coefficient and wear s
11、car diameter of benzoic acid and titanium-based lubricating grease under different test conditions. It can be seen that the titanium-based lubricating grease had better performance under high-speed, high-temperature and heavy-load conditions.Figure 2. Friction coefficient and wear scar diameter of b
12、enzoic acid and titanium-based lubricating grease under different test conditionsEffect of Lubricants on Surface MorphologySEM was used to observe the surface morphology of the friction pairs. As shown in Figure 3, the lubricating grease formed a dense and uniform boundary film on the friction surfa
13、ce, which effectively reduced the wear of the friction pairs. Moreover, the boundary film of the titanium-based lubricating grease was thicker and more uniform than that of benzoic acid.Figure 3. SEM images of the friction surface of benzoic acid and titanium-based lubricating greaseComposition of t
14、he Boundary FilmEDS analysis was used to analyze the composition of the boundary film. The results showed that the boundary film was mainly composed of TiO2, which had excellent anti-wear and anti-friction properties. The high content of TiO2 in the boundary film of the titanium-based lubricating gr
15、ease was consistent with the excellent anti-wear and anti-friction performance observed in the experimental results.ConclusionIn this study, the friction and wear properties of benzoic acid and titanium-based lubricating grease were investigated using a four-ball tester under different test conditio
16、ns. The results showed that the titanium-based lubricating grease had better performance under high-speed, high-temperature and heavy-load conditions. SEM analysis showed that the lubricating grease formed a dense and uniform boundary film on the friction surface, which effectively reduced the wear of the friction pairs. EDS analysis showed that the boundary film was mainly composed of TiO2, which
