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Interactions between iron, manganese, and the Al-Si eutectic in hypoeutectic Al-Si alloys

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Abstract

Sand-cast plates were used to determine the effect of iron and manganese concentrations on porosity levels in Al-9 pct Si-0.5 pct Mg alloys. Iron increased porosity levels. Manganese additions increased porosity levels in alloys with 0.1 pct Fe, but reduced porosity in alloys with 0.6 and 1 pct Fe. Thermal analysis and quenching were undertaken to determine the effect of iron and managanese on the solidification of the Al-Si eutectic. At high iron levels, the presence of large β-Al5FeSi was found to reduce the number of eutectic nucleation events and increase the eutectic grain size. The preferential formation of α-Al15Mn3Si2 upon addition of manganese reversed these effects. It is proposed that this interaction is due to β-Al5FeSi and the Al-Si eutectic having common nuclei. Porosity levels are proposed to be controlled by the eutectic grain size and the size of the iron-bearing intermetallic particles rather than the specific intermetallic phase that forms.

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References

  1. A. Couture:Int. J. Cast Met., 1981, vol. 6, pp. 9–17.

    Google Scholar 

  2. P.N. Crepeau:AFS Trans., 1995, vol. 103, pp. 361–66.

    CAS  Google Scholar 

  3. T.O. Mbuya, B.O. Odera, and S.P. Ng’ang’a:Int. J. Cast Met. Res., 2003, vol. 16, pp. 451–65.

    CAS  Google Scholar 

  4. C. Mascré:Fonderie, 1955, vol. 108, pp. 4330–36.

    Google Scholar 

  5. J.A. Taylor, G.B. Schaffer, and D.H. StJohn:Metall. Mater. Trans. A, 1999, vol. 30A, pp. 1651–55.

    CAS  Google Scholar 

  6. H. Iwahori, H. Takamiya, K. Yonekura, Y. Yamamoto, and M. Nakamura:Imono, 1988, vol. 60, pp. 590–95.

    CAS  Google Scholar 

  7. L.A. Narayanan and F.H. Samuel:AFS Trans., 1992, vol. 100, pp. 383–91.

    Google Scholar 

  8. N. Roy, A.M. Samuel, and F.H. Samuel:Metall. Mater. Trans. A, 1996, vol. 27A, pp. 415–29.

    CAS  Google Scholar 

  9. A.M. Samuel, F.H. Samuel, C. Villeneuve, H.W. Doty, and S. Valtierra:Int. J. Cast Met. Res., 2001, vol. 14, pp. 97–120.

    CAS  Google Scholar 

  10. J.A. Taylor, G.B. Schaffer, and D.H. StJohn:Metall. Mater. Trans. A, 1999, vol. 30A, pp. 1643–50.

    CAS  Google Scholar 

  11. M.O. Otte:Porosity Formation in AlSi9Cu3 Alloy Castings: The Influence of Iron, Strontium, Sodium, Antimony and Bismuth, Mining, Minerals, and Materials Engineering, University of Queensland, Brisbane, 2000.

    Google Scholar 

  12. C.M. Dinnis, J.A. Taylor, A.K. Dahle, and W. Schneider:Giessereiforschung, 2005, vol. 57, pp. 2–10.

    CAS  Google Scholar 

  13. J.A. Taylor, G.B. Schaffer, and D.H. StJohn:Metall. Mater. Trans. A, 1999, vol. 30A, pp. 1657–62.

    CAS  Google Scholar 

  14. K. Nogita, S.D. McDonald, K. Tsujimoto, K. Yasuda, and A.K. Dahle:J. Electron Microsc., 2004, vol. 53, pp. 361–69.

    Article  CAS  Google Scholar 

  15. A. Pennors, A.M. Samuel, F.H. Samuel, and H.W. Doty:AFS Trans., 1998, vol. 106, pp. 251–64.

    CAS  Google Scholar 

  16. A.M. Samuel, A. Pennors, C. Villeneuve, F.H. Samuel, H.W. Doty, and S. Valtierra:Int. J. Cast Met. Res., 2000, vol. 13, pp. 231–53.

    CAS  Google Scholar 

  17. X. Cao and J. Campbell:Int. J. Cast Met. Res., 2000, vol. 13, pp. 175–84.

    CAS  Google Scholar 

  18. X. Cao and J. Campbell:Metall. Mater. Trans. A, 2003, vol. 34A, pp. 1409–20.

    CAS  Google Scholar 

  19. L.F. Mondolfo:Manganese in Aluminium Alloys, The Manganese Centre, Neuilly sur Seine, France, 1978.

    Google Scholar 

  20. C. Villeneuve, A.M. Samuel, F.H. Samuel, H.W. Doty, and S. Valtierra:AFS Trans., 2001, vol. 109, pp. 39–60.

    Google Scholar 

  21. M. Dash and M. Makhlouf:J. Light Met., 2001, vol. 1, pp. 251–65.

    Article  Google Scholar 

  22. G. Heiberg, K. Nogita, A.K. Dahle, and L. Arnberg:Acta Mater., 2002, vol. 50, pp. 2537–46.

    Article  CAS  Google Scholar 

  23. S.D. McDonald, A.K. Dahle, J.A. Taylor, and D.H. St John:Metall. Mater. Trans. A, 2004, vol. 35A, pp. 1829–37.

    CAS  Google Scholar 

  24. A.K. Dahle, K. Nogita, J.W. Zindel, S.D. McDonald, and L.M. Hogan:Metall. Mater. Trans. A, 2001, vol. 32A, pp. 949–60.

    CAS  Google Scholar 

  25. C.M. Dinnis, A.K. Dahle, and J.A. Taylor:Mater. Sci. Eng., A, 2005, vol. 392, pp. 440–48.

    Article  CAS  Google Scholar 

  26. S.D. McDonald, K. Nogita, and A.K. Dahle:Acta Mater., 2004, vol. 52, pp. 4273–80.

    Article  CAS  Google Scholar 

  27. M.A. Easton and D.H. St John:Acta Mater., 2001, vol. 49, pp. 1867–78.

    Article  CAS  Google Scholar 

  28. L.F. Mondolfo:Aluminium Alloys: Structure and Properties, Butterworth and Co., London, 1976.

    Google Scholar 

  29. M.G. Day and A. Hellawell:J. Aust. Inst. Met., 1964, vol. 9, pp. 213–18.

    CAS  Google Scholar 

  30. C.M. Dinnis:Porosity Formation in Unmodified Al-Si-Mg-(Cu) Foundry Alloys: the Role of Iron and Manganese, University of Queensland, Brisbane, 2005, p. 43.

    Google Scholar 

  31. R.P. Taylor, S.T. McClain, and J.T. Berry:Int. J. Cast Met., 1999, vol. 11, pp. 247–57.

    Google Scholar 

  32. D.C. Montgomery, G.C. Runger, and N.F. Hubele:Engineering Statistics, 2nd ed., John Wiley, New York, NY, 2001.

    Google Scholar 

  33. E.E. Underwood:Quantitative Stereology, Addison-Wesley, Reading, MA, 1970.

    Google Scholar 

  34. Q.S. Hamed, R. Elliott, and P.S. Cooper: inLight Met. 1992, San Diego, CA, 1–5 March 1992, pp. 1391–97.

  35. O. Nielsen, L. Arnberg, A. Mo, and H. Thevik:Mater. Sci. Forum, 2000, vols. 329–330, pp. 43–48.

    Article  Google Scholar 

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Author notes

  1. C. M. Dinnis (Materials Engineer)

    Present address: CRC for Cast Metals Manufacturing (CAST), Materials Engineering, School of Engineering, University of Queensland, Australia

Authors and Affiliations

  1. Orrcon Operations Pty Ltd., 4014, Brisbane, Australia

    C. M. Dinnis (Materials Engineer)

  2. CAST, Division of Materials, School of Engineering, The University of Queensland, 4072, St. Lucia, Australia

    J. A. Taylor (Senior Research Fellow) & A. K. Dahle (Associate Professor)

Authors
  1. C. M. Dinnis
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  2. J. A. Taylor
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  3. A. K. Dahle
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Dinnis, C.M., Taylor, J.A. & Dahle, A.K. Interactions between iron, manganese, and the Al-Si eutectic in hypoeutectic Al-Si alloys. Metall Mater Trans A 37, 3283–3291 (2006). https://doi.org/10.1007/BF02586163

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  • DOI: https://doi.org/10.1007/BF02586163

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