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Optimization of wear parameters of binary Al−25Zn and Al−3Cu alloys using design of experiments

  • J. Sreejith
  • S. Ilangovan
Article
  • 13 Downloads

Abstract

Zinc-aluminum alloys have been used as bearing materials in the past. In recent years, binary Al−Zn alloys and Al−Zn−Cu alloys are being used as an alternative to the Zn−Al alloys for bearing applications. In this study, both binary Al−25Zn and Al−3Cu were prepared using stir casting process. Homogenization of the as-cast alloys was performed at 350ºC for 8 h and then, the alloys were furnace-cooled to 50ºC. The homogenization led to the removal of the dendritic structure of the as-cast alloys. After homogenization, wear parameters optimization was carried out using Taguchi technique. For this purpose, L9 orthogonal array was selected, and the control parameters selected are load, velocity, and sliding distance. The optimum parametric condition was obtained using signal-to-noise (S/N) ratio analysis, and specific wear rate (SWR) is the selected response. The “smaller-the-better” is the goal of the experiment for S/N ratio analysis. After the optimization, confirmation tests were carried out using analysis of variance (ANOVA) from the developed regression equation. Finally, wear mechanism studies were conducted using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) images.

Keywords

specific wear rate micro-hardness Taguchi technique signal-to-noise ratio analysis of variance aluminum-zinc alloy aluminum-copper alloy 

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References

  1. [1]
    P.P. Lee, T. Savaskan, and E. Laufer, Wear resistance and microstructure of Zn−Al−Si and Zn−Al−Cu alloys, Wear, 117(1987), No. 1, p. 79.CrossRefGoogle Scholar
  2. [2]
    T. Savaskan and S. Murphy, Mechanical properties and lubricated wear of Zn−25Al–based alloys, Wear, 116(1987), No. 2, p. 211.CrossRefGoogle Scholar
  3. [3]
    M. Babic, S. Mitrovic, and R. Ninkovis, Tribological potencial of zinc–aluminium alloys improvement, Tribol. Ind., 31(2009), No. 1–2, p. 15.Google Scholar
  4. [4]
    T. Savaşkan and O. Bican, Effects of silicon content on the microstructural features and mechanical and sliding wear properties of Zn−40Al−2Cu−(0−5)Si alloys, Mater. Sci. Eng. A, 404(2005), No. 1–2, p. 259.CrossRefGoogle Scholar
  5. [5]
    Y. Alemdağ and T. Savaşkan, Effects of silicon content on the mechanical properties and lubricated wear behaviour of Al−40Zn−3Cu−(0−5) Si alloys, Tribol. Lett., 29(2008), No. 3, p. 221.CrossRefGoogle Scholar
  6. [6]
    C. Beesley and T.S. Eyre, Friction and wear of aluminium alloys containing copper and zinc, Tribol. Int., 9(1976), No. 2, p. 63.CrossRefGoogle Scholar
  7. [7]
    A.E. Al–Rawajfeh and S.M.A. Al–Qawabah, Investigation of copper addition on the mechanical properties and corrosion resistance of commercially pure aluminum, Emir. J. Eng. Res., 14(2009), No. 1, p. 47.Google Scholar
  8. [8]
    A.N. Kumar, R. Srinivasu, and J.B. Rao, Dry sliding wear behavior of pure aluminium and Al−Cu alloys, [in] Technical Sessions—Proceedings of CIST2008 & ITS–IFToMM2008, Beijing, 2008, p. 422.Google Scholar
  9. [9]
    B.C. Mouli, D. Naresh, K.S.J. Prakash, and A.B. Krishna, Effect of copper content on wear properties of aluminium alloy, J. Chem. Pharm. Sci., 10(2017), No. 2, p. 1059.Google Scholar
  10. [10]
    S. Ilangovan, S. Viswanathan, and K.G. Niranthar, Study of effect of cooling rate on mechanical and tribological properties of cast Al−6.5Cu aluminum alloy, Int. J. Res. Eng. Technol., 3(2014), No. 5, p. 62.CrossRefGoogle Scholar
  11. [11]
    T. Savaşkan, O. Bican, and Y. Alemdağ, Developing aluminium− zinc–based a new alloy for tribological applications, J. Mater. Sci., 4 (2009), No. 8. p. 1969.Google Scholar
  12. [12]
    T. Savaskan and O. Bican, Dry sliding friction and wear properties of Al−25Zn−3Cu−3Si alloy, Tribol. Int., 43(2010), No. 8, p. 1346.CrossRefGoogle Scholar
  13. [13]
    T. Savaşkan and Y. Alemdağ, Effect of nickel additions on the mechanical and sliding wear properties of Al−40Zn−3Cu alloy, Wear, 268 (2010), No. 3–4, p. 565.Google Scholar
  14. [14]
    S. Ilangovan, S. Arul, and A. Shanmugasundaram, Effect of Zn and Cu content on microstructure, hardness and tribological properties of cast Al−Zn−Cu alloys, Int. J. Eng. Res. Afr., 27(2016), p. 1.CrossRefGoogle Scholar
  15. [15]
    N. Radhika and R. Raghu, Investigation on mechanical properties and analysis of dry sliding wear behaviour of Al LM13/AlN metal matrix composite based on Taguchi’s technique, J. Tribol., 139(2017), No. 4, p. 1.CrossRefGoogle Scholar
  16. [16]
    K.S. Arunagiri and N. Radhika, Studies on adhesive wear characteristics of heat treated aluminium LM25/AlB2 composites, Tribol. Ind., 38(2016), No. 3, p. 277.Google Scholar
  17. [17]
    S. Ilangovan, J. Sreejith, M. Manideep, and S. Harish, An experimental investigation of Cu−Ni−Sn alloy on microstructure, hardness and wear parameters optimization using DOE, Tribol. Ind., 40 (2018), No. 1, p. 156.Google Scholar

Copyright information

© University of Science and Technology Beijing and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Mechanical Engineering, Amrita School of EngineeringAmrita Vishwa VidyapeethamCoimbatoreIndia

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