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Impact of soot on metal wear characteristics using laser diffraction spectroscopy |
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| รหัสดีโอไอ | |
| Creator | P. KARIN, C. SUPANAMOK and K. HANAMURA |
| Title | Impact of soot on metal wear characteristics using laser diffraction spectroscopy |
| Publisher | Thai Society of Mechanical Engineers |
| Publication Year | 2559 |
| Journal Title | Journal of Research and Applications in Mechanical Engineering |
| Journal Vol. | 4 |
| Journal No. | 2 |
| Page no. | 126-134 |
| Keyword | Lubricating oil, Soot, Wear, Electron microscopy, Laser diffraction spectroscopy |
| ISSN | 2229-2152 |
| Abstract | The characteristics of soot affecting on the abilities of lubricating oil and leading to result in metal wear was studied. Soot particle contamination was simulated using carbon black. Micro-nanostructure of particles were studied by electron microscope. The behavior was studied by means of a Four-Ball tribology test with friction and wear measured. Wear roughness in micro-scale was also investigated by high resolution optical microscope and 3D rendering optical technique. Based on tribology test, soot contamination in oil made more wear on tested steel ball and reduced friction during test comparing to the test with fresh oil. In conclusion, the appropriate particle size (20 nm - 80 nm of primary particles and 80 nm - 300 nm of agglomerated particles), which is near to oil film thickness between metal surface contacts, is the dominant cause of making wear. By the way, the too large particle size compared to oil film thickness will escape out and too small particle size will not effect on wear. Furthermore, high level of proper particle size (20 nm 100 nm) contaminated in oil will increase probability of rubbing process. |
