Investigation of the Electrophysical Influence on the Antiwear Properties of Hydrocarbon Liquids
| Authors | V.Ye. Marchuk1 , M.V. Kindrachuk1 , V.I. Morozov1, O.M. Garmash1, O.I. Dukhota1, S.V. Fedorchuk1 , N.O. Naumenko2 |
| Affiliations |
1National Aviation University, 1, Liubomyra Huzara Avenue, 03058 Kyiv, Ukraine 2State Enterprise “State Road Transport Research Institute”, 57, Peremohy Avenue, 03113 Kyiv, Ukraine |
| Е-mail | nau12@ukr.net |
| Issue | Volume 12, Year 2020, Number 3 |
| Dates | Received 23 April 2020; revised manuscript received 15 June 2020; published online 25 June 2020 |
| Citation | V.Ye. Marchuk, M.V. Kindrachuk, V.I. Morozov, et al., J. Nano- Electron. Phys. 12 No 3, 03037 (2020) |
| DOI | https://doi.org/10.21272/jnep.12(3).03037 |
| PACS Number(s) | 83.60.Np |
| Keywords | Hydrocarbon liquids, Magnetic field (7) , Double nuclear resonance, Electrophysical method, Anti-wear properties, Magnetic susceptibility. |
| Annotation |
The application of electrophysical influence on hydrocarbon liquids is considered in order to improve their performance and change the magnetic susceptibility of hydrocarbon fuels and oils. Experimental studies of the wear resistance of chromium ball-bearing steel ШХ-15 (ShKh-15) have shown that the application of the method of electrophysical influence to the absorption signal significantly improves the wear-resistance properties of fuel and reduces the wear of the contacting surfaces of steel in the environment of aviation kerosene TS-1 by 34-38 %. When exposed to the electrophysical method upon receipt of the emission signal (the occurrence of the effect of double nuclear resonance), the antiwear properties of kerosene are reduced to 85 %, which leads to an increase in wear of steel samples by 16-20 %. This is due to a decrease in the oxidative activity of the hydrocarbon medium by changing the interaction with paramagnetic oxygen and increasing the concentration of dissolved oxygen in the friction zone. The process of oxidation of steel goes to the formation of the final wear products with excess oxygen in the friction zone. Thick films of a mixture of oxides have low strength, they are brittle and are destroyed by friction. In the future, the oxidation process is repeated, intense wear and significant fluctuations in the friction force are observed, which leads to pronounced adhesion. Analysis of the results obtained by emission spectroscopy showed a certain relationship between the antiwear properties and the composition of kerosene TS-1. After the electrophysical exposure and run-in of kerosene, the content of resinous compounds quadrupled, the oxygenated compounds content decreased by ~ 23 % and sulphur compounds content decreased by ~ 25 %, which indicate the improvement of the antiwear properties of the kerosene and, consequently, the possibility of increasing the critical load. The electrophysical influence on the magnetic susceptibility of kerosene TS-1 was investigated. Experimental studies have shown an increase in kerosene magnetism. The maximum change of (d ( – 0.7227∙10 – 6 occurs 60-70 min after electrophysical exposure due to the relaxation processes characterizing the exchange of energy between the system of nuclear spins of hydrogen and electrons of paramagnetic centers (dissolved oxygen) with the formation of diamagnetic complexes. |
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