Effect of Boron-Nitrogen Containing Modified Soybean Oil Lubricating Additive on Friction and Wear Behavior of Steel-Steel and Steel-Aluminum Alloy Systems

Abstract:

A type of new environmentally friendly lube additive---boron-nitrogen modified soybean oil was synthesized and characterized by infrared spectrum. Its effect on the friction and wear behavior of steel-steel and steel-aluminum alloy systems were investigated with a four-ball machine and an Optimol SRV friction and wear tester respectively. The morphographies of the worn surfaces were analyzed by means of scanning electron microscopy (SEM).The worn surfaces of the 2024Al alloy block were analyzed by means of X-ray photoelectron spectroscopy (XPS).The results show that the type of modified soybean oil as additives can obviously decrease the wear rate and friction coefficient of steel pair and steel-aluminum frictional pair. Its lubrication mechanism is inferred that a high strength adsorption film and/or tribochemistry reaction film on the worn surface of the Al alloy due the carrier effect of a long chain soybean oil, high reaction activities of nitrogen, electron-deficient of boron and their synergisms.

• Periodical: Applied Mechanics and Materials (Volumes 380-384)
• Pages: 8-11
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.380-384.8
• Online since: August 2013
• Authors: Jian Hua Fang, Bo Shui Chen, Jiu Wang, Jiang Wu
• Keywords: Boron-Nitrogen Modified Soybean Oil, Environmentally Friendly Lube Additive, Steel-Aluminum Pair, Steel-Steel Pair, Tribochemistry

References

[1] Y. Wang, Q.J. Xue, Effect of antiwear and extreme pressure additives on the wear of aluminum-on-steel contact. Tribology Internation, vol. 28, No. 8, pp.553-557., (1995).

DOI: 10.1016/0301-679x(96)85543-5

[2] L.T. Hu, J .M. Chen and Q.J. Xue, The Interaction between Antiwear Additives and Al2024 I. Oil Immersion Tests and Conventional Friction and Wear Test. Tribology, vol. 18, No4, pp.316-321, (1998).

[3] ] L.T. Hu, J.M. Chen and Q. J Xue, The Interaction between Antiwear Additives and Al2024 II. Investigations of the Oil Immersed Films and Lubricating Mechanism with FTIR and XPS. Tribology, vol. 19, No. 4, pp.331-336, . (1999).

[4] Y. H. Hu, W.M. Liu, Effect of chemical structure of organo-chlorine compounds on the lubricity of Al2924 against steel. Wear, vol. 218:, pp.78-83, (1998).

DOI: 10.1016/s0043-1648(98)00186-0

[5] T.H. Ren, Q.J. XUE, A Survey on Multifunctional Oil Additives of N-containing Heterocyclic Compounds and Their Derivatives. Tribology, vol. 14, No. 4, pp.370-381, (1994).

[6] Y.Q. Xia, W.M. Liu and Q. J Xue., Effect of Several Amide Compounds as Additives in Liquid Paraffin on Friction and Wear Behavior of Steel-Steel and Steel-Aluminum Alloy Systems. Tribology, vol. 22, No. 1, pp.40-43, (2002).

[7] Z.M. Hu, The Tribological Chemical Study of Borated Vegetable Oil. Lubrication Engineering, No. 2, pp.57-58., (1999).

[8] Z.M. Wang, X. X He, and D.Y. Sun, Practically of Infrared Spectroscopy. Beijing, Petroleum Industrial Press, (1978).

[9] J.Q. Wang, W.H. Wu, Electrum Spectroscopy. Beijing, National Defence Press, (1992).