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Article

Improvement Effect of Green Lubricants on the Tribological and Mechanical Performance of 4140 Steel

1
Tecnológico Nacional de México en Celaya, Apartado Postal 57, 38010-Celaya, Guanajuato, Mexico
2
Facultad de Química, Universidad de Guanajuato, Noria Alta S/N, 36050-Guanajuato, Guanajuato, Mexico
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(22), 4896; https://doi.org/10.3390/app9224896
Received: 17 October 2019 / Revised: 5 November 2019 / Accepted: 12 November 2019 / Published: 15 November 2019
(This article belongs to the Special Issue Green Lubricants 2019)
Although much has been learned and investigated about environmentally friendly lubricants in recent years, several issues remain critical to their use in specific applications. A key point that could be limiting their utilization is that the effect of green lubricants on the tribological and mechanical properties of the elements has not been thoroughly studied since such attributes determine their performance in industrial applications. For this reason, in this research, the effect of green lubrication on the tribological and hardness properties of AISI 4140 steel was studied. The performance of three bio-based lubricants was studied and compared to that of five of the most representative lubricants. First, the lubricants were chemically and physically characterized. Then, the effect of each lubricant on the friction and wear behavior of the system was analyzed by kinetic friction coefficient, wear rate calculations, and microhardness measurements. In general, the bio-based lubricants exhibited the lowest values of friction and wear. Further the mechanical properties of the systems lubricated by these lubricants were not affected or were affected to a lesser degree. View Full-Text
Keywords: bio-lubricants; environment-friendly lubrication; lubrication regime; microhardness; tribology bio-lubricants; environment-friendly lubrication; lubrication regime; microhardness; tribology
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MDPI and ACS Style

Hernández-Sierra, M.T.; Bravo-Sánchez, M.G.; Báez, J.E.; Aguilera-Camacho, L.D.; García-Miranda, J.S.; Moreno, K.J. Improvement Effect of Green Lubricants on the Tribological and Mechanical Performance of 4140 Steel. Appl. Sci. 2019, 9, 4896. https://doi.org/10.3390/app9224896

AMA Style

Hernández-Sierra MT, Bravo-Sánchez MG, Báez JE, Aguilera-Camacho LD, García-Miranda JS, Moreno KJ. Improvement Effect of Green Lubricants on the Tribological and Mechanical Performance of 4140 Steel. Applied Sciences. 2019; 9(22):4896. https://doi.org/10.3390/app9224896

Chicago/Turabian Style

Hernández-Sierra, María T., Micael G. Bravo-Sánchez, José E. Báez, Luis D. Aguilera-Camacho, J. S. García-Miranda, and Karla J. Moreno 2019. "Improvement Effect of Green Lubricants on the Tribological and Mechanical Performance of 4140 Steel" Applied Sciences 9, no. 22: 4896. https://doi.org/10.3390/app9224896

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