Bio-Fuel-Contaminated Lubricant and Hardening Effects on the Friction and Wear of AISI 1045 Steel |
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| Authors: | M A Maleque H H Masjuki M Ishak |
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| Affiliation: | University of Malaya, Department of Mechanical Engineering , Kuala Lumpur, 50603, Malaysia |
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| Abstract: | A study has been made on the wear and friction of hardened AISI 1045 steel using a tri-pin-on-disc type of friction and wear apparatus. During the investigation the linear pin wear, coefficient of friction and rise in pin specimen temperature were monitored and wear and friction curves plotted. Wear surfaces and mechanisms were investigated by means of optical microscopy. Analysis of used lubricating oil was performed using FTIR spectroscopy. It was shown that the wear rate, type of wear and friction coefficient were influenced by contaminating the lubricant with bio-fuel as well as the surface hardening treatment. Corrosive wear and pits on the specimen surface were found when plain bio-fuel was used as lubricating oil. The results also confirmed that better wear resistance was obtained from the surface-hardened steel specimen with 4 % bio-fuel-contaminated lubricant. Results from this study will be useful in material selection for tribological components in diesel engines running on vegetable fuel. |
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| Keywords: | Diesel Engines Vegetable Oils Friction Hardening Adhesive Wear Mechanisms Abrasive Wear Mechanisms |
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