Skip to main content
Log in

Elaboration of AlSi10Mg casting alloys using directional solidification processing

  • Published:
International Journal of Minerals, Metallurgy, and Materials Aims and scope Submit manuscript


The effects of pulling velocity on the solidification behavior and microstructural parameters of AlSi10Mg alloys prepared in a Bridgman-type directional solidification furnace were investigated. The microstructure, particularly the secondary dendritic arm spacing (SDAS), and the Brinell hardness (BH) of the solidified AlSi10Mg alloys were characterized for samples with cylindrical shapes and different conicities (θ = 0°, 5°, and 10°). Microstructural studies revealed an increased density of α-Al phase dendrites and a decreased interdendritic distance with increasing pulling velocity. The dendrites were found to be preferentially oriented along the pulling direction for low pulling velocities. For larger pulling velocities, the dendrites grew first in the cooling direction but then broke as others nucleated and coarsened. The HB values of the solidified samples increased as the pulling velocity increased. In regard to sample conicity, smaller dendrites were observed for an apex angle of θ = 5°, resulting in the largest HB value. This result was interpreted in terms of the favorable orientation of the dendrite along the pulling direction.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Subscribe and save

Springer+ Basic
EUR 32.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or Ebook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others


  1. S. Hegde and K. Narayan Prabhu, Modification of eutectic silicon in Al–Si alloys, J. Mater. Sci., 43(2008), No. 9, p. 3009.

    Article  Google Scholar 

  2. M.C. Flemings, T.Z. Kattamis, and B.P. Bardes, Dendrite arm spacing in aluminum alloys, AFS Trans., 99(1991), p. 501.

    Google Scholar 

  3. T.J. Smith, H. Sehitoglu, E. Fleury, H.J. Maier, and J. Allison, Modeling high-temperature stress–strain behavior of cast aluminum alloys, Metall. Mater. Trans. A, 30(1999), No. 1, p. 133.

    Article  Google Scholar 

  4. T.A. Hosch, Solidification, Growth Mechanisms, and Associated Properties of Al–Si and Magnesium Light-weight Casting Alloys, [Dissertation] Iowa State University, Ames, 2010.

    Google Scholar 

  5. S. Justi and R.H. Bragg, Tensile properties of directionally solidified Al–Si eutectic, Metall. Trans. A, 9(1978), p. 515.

    Article  Google Scholar 

  6. D. Morrow, Mechanical Properties of Directionally Solidified Al–Si Eutectic [Dissertation] University of California, Berkeley, 1977.

    Book  Google Scholar 

  7. U. Böyük, S. Engin, and N. Marasli, Microstructural characterization of unidirectional solidified eutectic Al–Si–Ni alloy, Mater. Charact., 62(2011), No. 9, p. 844.

    Article  Google Scholar 

  8. R. Grugel and W. Kurz, Growth of interdendritic eutectic in directionally solidified Al–Si alloys, Metall. Trans. A, 18(1987), p. 1137.

    Article  Google Scholar 

  9. J. Fan, X.Z. Li, Y.Q. Su, R.R. Chen, J.J. Guo, and H.Z. Fu, Microstructure evolution of directionally solidified Ti–46Al–0.5W–0.5Si alloy, J. Cryst. Growth, 337(2011), No. 1, p. 52.

    Article  Google Scholar 

  10. Y. Bayraktar, D. Liang, and H. Jones, The effect of growth velocity and temperature gradient on growth characteristics of matrix eutectic in a hypereutectic aluminium–silicon alloy, J. Mater. Sci., 30(1995), No. 23, p. 5939.

    Article  Google Scholar 

  11. A. Morri, Empirical models of mechanical behaviour of Al–Si–Mg cast alloys for high performance engine applications, Metall. Sci. Technol., 28(2010), No. 2, p. 25.

    Google Scholar 

  12. M. Petric, J. Medved, and P. Mrvar, Effect of the grain refinement, modification and the cooling rate on microstructure of the AlSi10Mg alloy, Mater. Geoenviron., 53(2006) No. 3, p. 385.

    Google Scholar 

  13. M. Tash, F.H. Samuel, F. Mucciardi, and H.W. Doty, Effect of metallurgical parameters on the hardness and microstructural characterization of as-cast and heat-treated 356 and 319 aluminum alloys, Mater. Sci. Eng. A, 443(2007), No. 1–2, p. 185.

    Article  Google Scholar 

  14. S. Shankar, Y.W. Riddle, and M.M. Makhlouf, Eutectic solidification of aluminum–silicon alloys, Metall. Mater. Trans. A, 35(2004), p. 3038.

    Article  Google Scholar 

  15. M.A. Moustafa, F.H. Samuel, and H.W. Doty, Effect of solution heat treatment and additives on the hardness, tensile properties and fracture behaviour of Al–Si (A413.1) automotive alloys, J. Mater. Sci., 38(2003), p. 4523.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations


Corresponding author

Correspondence to Khadoudja Ghedjati.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Ghedjati, K., Fleury, E., Hamani, M.S. et al. Elaboration of AlSi10Mg casting alloys using directional solidification processing. Int J Miner Metall Mater 22, 509–515 (2015).

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: