Abstract
This paper investigates the effect of unsaturated fatty acid additives on the lubricating properties of a biodiesel, composed of a blend of fatty acid methyl esters (FAMEs) and a conventional diesel fuel. The presence of fatty acids as additives for biodiesel improves their lubricating properties at elevated temperature conditions. The formation of a protective lubricating tribochemical film on the steel contact surfaces has been evidenced. Elevated temperature conditions and possibly oxygen are needed to form this film that reduces friction and limits wear. Several analytical tools have revealed the insulating nature of the formed tribofilm and its chemical properties. Friction-induced reticulation is thought to play a major role in the growth of this insulating film.
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References
Hoshi M. Reducing friction losses in automobile engines. Tribol Int17(4): 185–189 (1984)
Rosenberg R C. General friction considerations for engine design. SAE Paper 821576 (1982)
Katoh A, Yasuda Y. An analysis of friction techniques for the direct-acting valve train system of a new-generation lightweight 3-liter V6 Nissan engine. SAE Paper 940992 (1994)
Chevron corporation: Diesel fuels technical review, 2007.
Le Pera M. The lubricity of fuels. Tribology & Lubrication Technology, 2007.
Canter N. Special report: Boundary lubricity additives. Tribology & Lubrication Technology, 2009.
Diesel fuel-Assessment of lubricity using the HFRR-Part 1: Test method. ISO 12156-1:2006, 2006.
Standard test method for evaluating lubricity of diesel fuels by HFRR. ASTM D6079-11, 2011.
Standard test method for evaluating lubricity of diesel fuels by HFRR by visual observation. ASTM D7688-11, 2011.
Biodiesel handling and use guide-Fourth edition. NREL/TP-540-43672, 2009.
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This article is published with open access at Springerlink.com
Jean Michel MARTIN. He is a Professor Emeritus at Ecole Centrale de Lyon (University of Lyon, France) since 2011. He obtained his PhD in 1978 from University of Lyon. He is an honorary member of the University Institute of France (IUF). He has more than 35 years of extensive experience in fundamental and applied research in tribology of thin films, diamondlike coatings, boundary lubrication, antiwear and extreme-pressure additives, and surface analysis. He discovered superlubricity of pure MoS2 in ultrahigh vacuum and superlubricity of DLC coatings with OH-containing lubricants, implemented new additive formulations for metalforming and engine applications, and developed new analytical techniques for tribofilm analyses (XPS/AES/ToF-SIMS, XANES, etc.). He has published more than 160 papers in tribology, surface analysis and lubricant engineering and possessed 14 patents.
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Martin, J.M., Matta, C., Bouchet, MI.D.B. et al. Mechanism of friction reduction of unsaturated fatty acids as additives in diesel fuels. Friction 1, 252–258 (2013). https://doi.org/10.1007/s40544-013-0022-2
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DOI: https://doi.org/10.1007/s40544-013-0022-2