Skip to main content
SpringerLink
Log in

The effect of skin characteristics on the environmental behavior of die cast AZ91 magnesium alloy

  • Published:
Journal of Materials Science Aims and scope Submit manuscript

Abstract

The skin characteristics of die cast AZ91 magnesium alloys and their consequent environmental behavior were evaluated in correlation with die cast wall thickness. The metallurgical examination of the skins was carried out using scanning electron microscopy (SEM), SPX-surface analyses with ESCALAB 250 apparatus, and X-ray diffraction analysis. The corrosion behavior of the skins was evaluated by immersion tests and by potentiodynamic polarization measurements in 3.5% NaCl solution saturated with Mg (OH)2 at room temperature. The results show that the corrosion resistance of die cast specimens with relatively greater thickness was improved compared to the corrosion resistance of thin wall specimens. This was explained in light of the obtained skin characteristics, mainly in terms of aluminum content, β phase (Mg17Al12) quantity and morphology, and level of porosity.

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

Access this article

Log in via an institution

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

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10

Similar content being viewed by others

References

  1. Shan S, Gokhale AM (2003) Mater Sci Eng A Struct Mater 361:267

    Article  Google Scholar 

  2. Song G, Atrens A, Dargusch M (1998) Corros Sci 41:249

    Article  Google Scholar 

  3. Yu B-L, Uan J-Y (2005) Metall Mater Trans A 36A:2245

    Article  CAS  Google Scholar 

  4. Lafront A-M, Dub D, Tremblay R, Ghali E, Blawert C, Dietzel W (2008) Can Metall Q 47(4):459

    Article  CAS  Google Scholar 

  5. Ghali E, Dietzel W, Kainer KU (2004) J Mater Eng Perform 13(1):7

    Article  CAS  Google Scholar 

  6. Song G, Atrens A, Wu X, Zhang B (1998) Corros Sci 40(10):1769

    Article  CAS  Google Scholar 

  7. Zhao MC, Liu M, Song G, Atrens A (2008) Corros Sci 50:1939

    Article  CAS  Google Scholar 

  8. Uan J-Y, Li CF, Yu BL (2008) Metall Mater Trans A 39a:703

    Article  CAS  Google Scholar 

  9. Weiler JP, Wood JT (2006) Mater Sci Eng A 419:297

    Article  Google Scholar 

  10. Cho CY, Uan J-Y, Lin HJ (2005) Mater Sci Eng A 402:193

    Article  Google Scholar 

  11. Song G, Atrens A (1998) In: Mordike B, Kainer K (eds) Magnesium alloys and their applications. Wolfsburg, Germany, p 28 (April: 415–419)

    Google Scholar 

  12. Aghion E, Moscovitch N, Arnon A (2007) Mater Sci Eng A 447:341

    Article  Google Scholar 

  13. Aghion E, Moscovitch N, Arnon A (2007) Mater Sci Technol 23:270

    Article  CAS  Google Scholar 

  14. Song G, Atrens A (2003) Adv Eng Mater 5(12):837

    Article  CAS  Google Scholar 

  15. Lunder O, Nisancioglu K, Hanses RS (1993) SAE Technical paper No. 930755

  16. Kuhlein M, Galovsky U (2004) Mater Corros 55(6):444

    Article  Google Scholar 

Download references

Acknowledgements

The authors would like to thank the Magnesium Research Institute of Dead Sea Magnesium for the preparation of the die casting specimens, and N. Frumin and D. Mogilyanski from Ben-Gurion University for their kind assistance in the XPS and XRD analyses, respectively.

Author information

Authors and Affiliations

  1. Department of Materials Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva, 84105, Israel

    E. Aghion & N. Lulu

Authors
  1. E. Aghion
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. N. Lulu
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to E. Aghion.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Aghion, E., Lulu, N. The effect of skin characteristics on the environmental behavior of die cast AZ91 magnesium alloy. J Mater Sci 44, 4279–4285 (2009). https://doi.org/10.1007/s10853-009-3634-1

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10853-009-3634-1

Keywords

Search

Navigation