Dry Sliding Wear Behavior of Zircon Sand Reinforced Al–Si Alloy
The emerging demand of light weight alloys and composites for the engineering and structural applications leads to explore the possibility to develop new techniques to achieve materials of high performance. In the present study, Al–Si/zircon sand reinforced composite has been developed via spray forming technique. Dry sliding wear behavior of as cast Al–Si base alloy and spray formed Al–Si/zircon sand reinforced composite containing 8% V f of zircon sand has been analyzed. An isotropic wear property of spray formed composite has been checked by selecting the spray formed preform in both horizontal and vertical sections of deposit. The wear tests which were carried out at loads of 14.7, 24.5, 34.3, 44.1, and 53.9 N have shown that spray formed composite is more wear resistant in comparison to the cast Al–Si alloy. Moreover, wear coefficient in case of composite is also found to be lower than base alloy. Optical and scanning electron microscopies have been carried out to furnish a suitable explanation for observed wear behavior of composite and alloy.
KeywordsAdhesive wear Wear mechanisms SEM Wear particle analysis
The authors are thankful to Council of Scientific and Industrial Research (CSIR), India funded scheme number 22(0403)/06/EMR-II for providing financial support for this study.
- 3.Singer, A.R.E.: A new generation of engineering materials produced by Spray forming. Mater. Des. 4, 892–897 (1983)Google Scholar
- 4.Hariprasad, S., Sastry, S.M.L., Jernia, K.L., Lederich, R.J.: Microstructures and mechanical properties of dispersion-strengthened high-temperature Al–8.5Fe–1.2V–1.7Si alloys produced by atomized melt deposition process. Metall. Trans. A 24, 865–873 (1998)Google Scholar
- 8.Ferrarini, C.F., Bolfarini, C., Kiminami, C.S., Botta, F.W.J.: Microstructure and mechanical properties of spray deposited hypoeutectic Al–Si alloy. Mater. Sci. Eng. A 375–377, 577–580 (2004)Google Scholar
- 9.Srivastava, V.C., Mandal, R.K., Ojha, S.N.: Microstructure and mechanical properties of Al–Si alloys produced by spray forming process. Mater. Sci. Eng. A 304–306, 555–558 (2001)Google Scholar
- 13.Ding, G.J., Yu, J.K., Li, H.L., Hu, R.: SiCp/Al composites fabricated by spray codeposition. In: Miravete A. (ed.) Proceedings of the Ninth International Conference on Composite Materials, vol 1, p. 839. Woodhead Publishing Limited (1993)Google Scholar
- 19.Ejiofor, J.U., Okorie, B.A., Reddy, R.G.: Studies on sintered zircon-reinforced aluminium alloy matrix composites. Advances in synthesis and processing of metal ceramic matrix composites III. In: TMS Annual Meeting, Orlando, FL, 12 February 1997Google Scholar
- 22.Lavernia, E.J., Wu, Y.: Spray Atomization and Deposition. Wiley, England (1996)Google Scholar
- 26.Bayer, R.G.: Mechanical Wear Prediction and Prevention. Marcel Dekker Inc., New York (1994)Google Scholar
- 27.Pandey, O.P.: Microstructure and wear characteristics of Al–4.5Cu–5Pb alloy. J. Mater. Sci. Technol. 14, 125–131 (1998)Google Scholar