Healing of Double Oxide Film Defect Under Holding Pressure in A357 Alloy

  • Shanguang Liu
  • Chuanbiao Luo
  • Guoai Li
  • Zheng Lu
  • Shenglong Dai
Conference paper


The bonding possibility of the double oxide film defect was investigated by holding pressure during solidification after holding in liquid A357 alloy for 13 min. The defect was modeled experimentally through contacting the oxide film layers of the A357 alloy. The composition and morphology of the oxide film layers were studied by SEM and EDX. The results show that the bonding area of the oxide layer increased with the holding pressure during solidification. This is due to the extrusion ability among the porous spinel gets stronger with the increase of holding pressure, which means the liquid metal, could flow through the porous spinel much easier.


Aluminum casting Double oxide film Healing Holding pressure 



This work is supported by the Natural Science Foundation of China (51474195).


  1. 1.
    J. Campbell, Casting, Second ed., Butterworth-Heinemann, London, 2011.Google Scholar
  2. 2.
    S. Fox, J. Campbell, Visuallsation of oxide film defects during solidification of aluminium alloys, Scripta Mater. 43 (2000) 881–886.Google Scholar
  3. 3.
    W. D. Griffiths, R. Raiszadeh, Hydrogen, porosity and oxide film defects in liquid Al, J. Mater. Sci. 44 (2009) 3402–3407.Google Scholar
  4. 4.
    D. Dispinar, J. Campbell, Critical assessment of reduced pressure test. Part 1: Porosity phenomena, Int, J. Cast Met. Res. 17 (2004) 280–286.Google Scholar
  5. 5.
    X. Cao, J. Campbell, The nucleation of Fe-rich phases on oxide films in Al-11.5 Si-0.4 Mg cast alloys, Metall. Mater. Trans. A. 34A (2003) 1409–1420.Google Scholar
  6. 6.
    J.A.S. Tenório, D.C.R. Espinosa, High-temperature oxidation of Al–Mg alloys, Oxid. Met. 53 (2000) 361–373.Google Scholar
  7. 7.
    S.A. Impey, D.J. Stephenson, J.R. Nicholls, Mechanism of scale growth on liquid aluminium, Mater. Sci. Technol. 4 (1988) 1126–1132.Google Scholar
  8. 8.
    C. Nyahumwa, N. Green, J. Campbell, Effect of mold-filling turbulence on fatigue properties of cast aluminium alloys, AFS Trans. 106 (1998) 215–224.Google Scholar
  9. 9.
    C. Nyahumwa, N. Green, J. Campbell, Influence of casting technique and hot isostatic pressing on the fatigue of an Al-7Si-Mg alloy, Metall. Mater. Trans. A. 32A (2001) 349–358.Google Scholar
  10. 10.
    R. Raiszadeh, W.D. Griffiths, A method to study the history of a double oxide film defect in liquid aluminum alloys, Metall. Mater. Trans. B. 37B (2006) 865–871.Google Scholar
  11. 11.
    M. Aryafar, R. Raiszadeh, A. Shalbafzadeh, Healing of double oxide film defects in A356 aluminium melt, J. Mater. Sci. 45 (2010) 3041–3051.Google Scholar
  12. 12.
    S. Amirinejhad, R. Raiszadeh, H. Doostmohammadi, Study of double oxide film defect behaviour in liquid Al–Mg alloys, Int. J. Cast Met. Res. 26 (2013) 330–338.Google Scholar
  13. 13.
    F.N. Bakhtiarani, R. Raiszadeh, The behaviour of double oxide film defects in Al–4.5 wt% Mg melt, J. Mater. Sci. 46 (2011) 1305–1315.Google Scholar
  14. 14.
    S.Q. Yan, H. Yu, Z.F. Xu, W.B. Xiong, C.C. Cai, Effect of holding pressure on the microstructure of vacuum counter-pressure casting aluminum alloy, J. Alloys Compd. 501 (2010) 352–357.Google Scholar
  15. 15.
    H. John, H. Hausner, Influence of oxygen partial pressure on the wetting behaviour in the system Al/Al2O3, J. Mater. Sci. Lett. 5 (1986) 549–551.Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Shanguang Liu
    • 1
  • Chuanbiao Luo
    • 1
  • Guoai Li
    • 1
  • Zheng Lu
    • 1
  • Shenglong Dai
    • 1
  1. 1.Beijing Institute of Aeronautical MaterialsBeijingPeople’s Republic of China

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