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Volume 12, March 2017, Pages 18-37
Self-lubricating tribological characterization of lead free Fe-Cu based plain bearing material
Shuhaib Mushtaq, M.F. Wani
Centre for Tribology, Department of Mechanical Engineering, National Institute of Technology Srinagar, 190006 India
The negative impact of lead on environment and thereby its reciprocity on the health of mankind, there is a growing emphasis on resisting the usage of lead in bearings. Owing to this, new bearing materials that provide comparable tribological performance to that of lead containing alloys are being developed. In this study, lead free Fe-Cu based powders with addition of elements such as tin, molybdenum disulfide and Nano boron nitride (BN) have been developed by powder metallurgy (PM) technique in order to improve the tribological and mechanical properties. The powder mixtures were compressed at a pressure of 500 MPa, and then sintered in dry hydrogen atmosphere at 9000C for 50 minutes. The mechanical and tribological properties obtained due to addition of the said elements is presented in this study. The tribological behavior of the selected alloys is analyzed by reciprocating-sliding tests under dry conditions. The morphology of wear scars and the microstructure of the wear surfaces were investigated. The material with 2.5 wt.% of Sn exhibited the highest value of hardness, the material with 7.5 wt.% of Nano BN comparably shows the low coefficient of friction and wear rate as compared with 5 wt.% of Nano BN.
Self-lubricating bearing; Fe-Cu alloy; Powder metallurgy; Friction; Wear
Ali Erdemir. Solid lubricants and Self- lubricating films, 2001. CRC Press LLC.
Archard, J., 1953. Contact and rubbing of flat surfaces. Journal of applied physics, 24(8), 981-988.
ASTM international designation, 2002. B 108, 328-96.
Bernard, S. and Miele, P., 2014. Nanostructured and architecture boron nitride from boron, nitrogen and hydrogen-containing molecular and polymeric precursors. Materials Today, 17, 443-450.
Buharu, M., Bicsak, E. and Sorcoi, L.A., 2010. Properties of sintered parts obtained from Fe based powders produced by ductil iron powder. BUZAU Romania.
Bushan, B., 1999. Principles and Applications of Tribology. John Wiley & Sons.
Causton, R.J. and Fulmer, J.J., 1992. Sinter hardening low-alloy steels. Advances in Powder Metallurgy and Particulate Materials, vol.5, 17-51.
Cui, G., Niu, M., Zhu, S., Yang, J. and Bi, Q., 2012. Dry-sliding tribological properties of bronze-graphite composites. Tribology letters, 48 (2), 111-122.
Dhanasekaran, S. and Gnanamoorthy, R., 2007. Dry sliding friction and wear characteristics of Fe-C-Cu alloy containing MoS2. Materials and Design, 28, 1135-1141.
Gebretsadik, D.W., Hardell, J. and Prakash, B., 2015. Friction and wear characteristics of different Pb - free bearing materials in mixed and boundary lubrication regimes, Wear, 340-341, 63-72.
Gheorghe, S. and Teisanu, C., 2011. Development of New PM Iron-Based Materials for Self-lubricating Bearings. Advances in Tribology, 11-16.
Goncalves, P.D., Furlan, K.P., Hammes, G., Binder, C. and Klien, A.N., 2014. Self-lubricating sintered composites with h-BN and Graphite mixtures as solid lubricants, in world congress on powder metallurgy and particulate materials, Orlando, 9.10-9.17.
Jia, J.H., Chen, J.M., Zhou, H.D., Wang, J.B. and Zhou, H., 2004. Friction and wear properties of bronze-graphite composite under water lubrication. Tribology International, 37,423-429.
Kostornoy, A.G. and Fushchich, O.I., 2007. Sintered Antifriction Materials. Powder Metallurgy and Metal Ceramics, 46, 9-10.
Mahathanabodee, S., Palathai, T., Raadnui, S., Tongsri, R. and Sombatsompop, N., 2013. Effects of hexagonal boron nitride and sintering temperature on mechanical and tribological properties of SS316L/h-BN composites. Materials and Design, 46, 588-597.
Mahdavian, S.M., Mai, Y.W. and Cotterell, B., 1982. Friction, metallic transfer and debris analysis of sliding surface. Wear, 82, 221-232.
Moustafa, S.F., El-Badry, S.A, Sanad, A.M. and Kieback, B., 2002. Friction and wear of copper-graphite composites made with Cu-coated and uncoated graphite powders. Wear, 253, 699-710.
Nathi R., 2016. Performance of non-recessed hole- entry hybrid journal bearing operating under turbulent regime. Jurnal Tribologi, 8, 12-26.
Nuraliza, N., Syahrullail, S. and Faizal, M.H., 2016. Tribological properties of aluminium lubricated with palm olein at different load using pin-on-disk machine. Jurnal Tribologi, 9, 45-59.
Omrani, E., Moghadam, A.D., Menezes. P.L. and Rohatgi, P.K., 2016. New emerging self-lubricating metal matrix composites for tribological applications. Ecotribology, Springer International Publishing, 63-103.
Rajkumar, K. and Aravindan, S., 2011. Tribological performance of microwave sintered copper –TiC-graphite hybrid composites. Tribology International 44, 347-358.
Robert, L. Mott, Machine Elements in Mechanical Design.4th Edition. Pearson Prentice Hall, 660-687.
Teisanu, C., Tudor, A. and Ciupitu, I., 2003. Tribological features of PM Iron-Copper based materials. Fascicle VIII, Tribology, 1221-4590.
Tufekci, K., Kurbanoglu, C. and Tunay, R., 2006. Friction and wear properties of Cu and Fe based P/M bearing materials. Journal of Mechanical Science and Technology, 27 (4), 513-521.
Verghese, R. and Gopinath, K., 1988. The influence of Antimony additions on Sintered Fe-Cu bearing materials. Key Engineering Materials, 29-31, 457-464.