Friction and Wear Performances of Magnesium Alloy against Steel under Lubrication of Soybean Oil with S-Containing Additive

Abstract:

A S-containing additive, sulfuration modified soybean oil (named as SSO), was prepared by chemical modification of soybean oil with sulfur compounds. The friction and wear performances of AZ91D magnesium alloy against GCr15 bearing steel under the lubrication of rapeseed oil formulated with SSO were evaluated on a SRV tribotester. The topographies and the chemical species of the worn surfaces of magnesium alloy were analyzed by a scanning electron microscope (SEM) and an X-ray photoelectron spectroscope (XPS), respectively. The results indicated that the friction and wear of the magnesium alloy-steel tribomates could be effectively reduced by formulating SSO into rapeseed oil lubricant. The friction coefficients and the wear volumes of magnesium alloy decreased with increasing contents of SSO. The surface lubricated with SSO-doped rapeseed oil was characterized by less wear as compared with that lubricated with neat rapeseed oil. The enhanced anti-wear and friction-reducing abilities of rapeseed oil by SSO in the lubrication of magnesium alloy against steel were ascribed to the formation of a composite boundary lubrication film due to the strong adsorption of SSO and rapeseed oil onto the lubricated surfaces and their tribochemical reactions with magnesium alloy.

• Periodical: Applied Mechanics and Materials (Volume 538)
• Pages: 19-23
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.538.19
• Online since: April 2014
• Authors: Jian Hua Fang*, Dong Yong Xia, Bo Shui Chen, Jiang Wu, Jiu Wang
• Keywords: Friction, Magnesium Alloy, Rapeseed Oil, S-Containing Additive, Soybean Oil, Wear

References

[1] Zhang C X, Chen P L. Application and research progress of magnesium alloys in automobile industry[J]. Foundry Technology, 2008, 29(4): 531-535.

[2] Cole G. Mg components for automotive body, chassis, and power train. Dearborn (MI): Ford Motor Company, (1997).

[3] Blau, P J, Walukas M. Sliding friction and wear of magnesium alloy AZ91D produced by two different methods[J]. Tribology International, 2000, (33) 573–579.

DOI: 10.1016/s0301-679x(00)00108-0

[4] Mehta D S, Masood S H, Song W Q. Investigation of wear properties of magnesium and aluminum alloys for automotive applications[J]. Journal of Materials Processing Technology, 2004, (155–156): 1526–1531.

DOI: 10.1016/j.jmatprotec.2004.04.247

[5] Aung N N, Zhou W, Lim L N. Wear behaviour of AZ91D alloy at low sliding speeds[J]. Wear, 2008, (265): 780–786.

DOI: 10.1016/j.wear.2008.01.012

[6] Sun H Q, Shi Y N, Zhang M X. Wear behaviour of AZ91D magnesium alloy with a nanocrystalline surface layer[J]. Surface & Coatings Technology, 2008, (202): 2859– 2864.

DOI: 10.1016/j.surfcoat.2007.10.025

[7] Jia Z, Xia Y, Liu W, Li B. Tribological characteristics of magnesium alloy using BN-containing additives under boundary lubricating condition[J]. Advanced Tribology, 2010, 3(6): 899-902.

DOI: 10.1007/978-3-642-03653-8_307

[8] Huang W J, Du C H, Li Z, Liu M. Tribological characteristics of magnesium alloy using N-containing compounds as lubricating additives during sliding[J]. Wear, 2006, 260(1-2): 140-148.

DOI: 10.1016/j.wear.2004.12.039

[9] Matsumoto R, Osakada K. Lubrication and friction of magnesium alloys in warm forging[J]. CIRP Annals - Manufacturing Technology, 2002, 51(1): 223-226.

DOI: 10.1016/s0007-8506(07)61504-2

[10] Huang W J, Hou B, Liu M, Li Z. Improvement in tribological performances of magnesium alloy using amide compounds as lubricating additives during sliding[J]. Tribology Letters, 2005, 18(4): 445-451(7).

DOI: 10.1007/s11249-004-3596-z

[11] Boyde S. Green lubricants: environmental benefits and impacts on lubrication[J]. Green Chemistry, 2002, 12 (4): 293-307.

DOI: 10.1039/b202272a

[12] Willing A. Lubricants based on renewable resources£-an environmentally compatible alternative to mineral oil products[J]. Chemosphere, 2001, 43: 89-98.

DOI: 10.1016/s0045-6535(00)00328-3

[13] Fox N J, Stachowiak G W. Vegetable oil-based lubricants - a review of oxidation[J]. Tribology International, 2007, 40: 1035–1046.

DOI: 10.1016/j.triboint.2006.10.001

[14] Rebeccal G, Rogere M. Biodegradable lubricants[J]. Lubrication Engineering, 1998, 7: 10-16.