Skip to main content

X-Ray Computed Tomographic Investigation of High Pressure Die Castings

  • Conference paper
  • First Online:
Light Metals 2017

Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

Abstract

The porosities and intermetallic phases in a high pressure die cast Al–Mg–Si–Mn alloy was investigated using 3D X-ray computed tomography with different scanning resolutions. The experimental results demonstrated the porosity level and phase detection of dependency upon voxel sizes. The porosity levels were 0.4, 0.5 and 0.8% and the intermetallic phases were 0.3, 0.4 and 0.6% when the same casting sample was scanned at 15 μm/vox, 7.2 μm/vox and 2.1 μm/vox, respectively. However, the structural parameters should be assessed to determine the necessary and/or possible image quality, weighing factors such as scan time, field of view, and voxel sizes.

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

Access this chapter

Institutional subscriptions

References

  1. R. Monroe, Porosity in castings. AFS Transactions. American Foundry Society, Schaumburg, IL USA, Paper 05-245(04), pp. 1–28 (2005)

    Google Scholar 

  2. ASM International, Casting Design and Performance (American Society for Metals, Metals Park, 2009), pp. 1–36

    Google Scholar 

  3. A. Balasundaram, A.M. Gokhale, Quantitative characterization of spatial arrangement of shrinkage and gas (air) pores in cast magnesium alloys. Mater. Charact. 46, 419–426 (2001)

    Article  Google Scholar 

  4. G. Nicoletto, G. Anzelotti, R. Konečná, X-ray computed tomography vs. metallography for pore sizing and fatigue of cast Al-alloys. Procedia Eng. 2, 547–554 (2010)

    Article  Google Scholar 

  5. G. Nicolettoa, R. Konečnáb, S. Fintovab, Characterization of microshrinkage casting defects of Al–Si alloys by X-ray computed tomography and metallography. Int. J. Fatigue 41, 39–46 (2012)

    Article  Google Scholar 

  6. E. Ferrie, J.Y. Buffiere, W. Ludwig, 3D characterization of the nucleation of a short fatigue crack at a pore in a cast Al alloy using high resolution synchrotron microtomography. Int. J. Fatigue 27, 1215–1220 (2005)

    Article  Google Scholar 

  7. C. Verdu, J. Adrien, J.Y. Buffiere, Three-dimensional shape of the early stages of fatigue cracks nucleated in nodular cast iron. Mater. Sci. Eng., A 483, 402–405 (2008)

    Article  Google Scholar 

  8. P. Powazka et al., Computed tomography—an alternative and complement to traditional metallographic investigations of porosity in cast aluminium, in Proceedings of 2nd Fatigue Symposium, Leoben, pp. 51–66 (2008)

    Google Scholar 

  9. T. Marrow, J. Buffiere, P. Withers, G. Johnson, D. Engelberg, High resolution X-ray tomography of short fatigue crack nucleation in austempered ductile cast iron. Int. J. Fatigue 26, 717–725 (2004)

    Article  Google Scholar 

  10. M. Wicke, M. Luetje, I. Bacaicoa, A. Brueckner-Foit, Characterization of casting pores in Fe-rich Al-Si-Cu alloys by microtomography and finite element analysis, in 21st European Conference on Fracture, ECF21, 20–24 June 2016, Catania, Italy

    Google Scholar 

  11. S. Ji, W. Yang, F. Gao, D. Watson, Z. Fan, Effect of iron on the microstructure and mechanical property of Al-Mg-Si-Mn and Al-Mg-Si diecast alloys. Mater. Sci. Eng., A 564, 130–139 (2013)

    Article  Google Scholar 

  12. S. Ji, Y. Wang, D. Watson, Z. Fan, Microstructural evolution and solidification behaviour of Al-Mg-Si alloy in high-pressure die casting. Metall. Mater. Trans. A 44A, 3185–3197 (2013)

    Article  Google Scholar 

  13. H. Yang, S. Ji, D. Watson, M. White, Z. Fan, Microstructure and mechanical properties of ductile aluminium alloy manufactured by recycled materials. Mater. Sci. Forum 794–796, 1077–1082 (2014)

    Article  Google Scholar 

Download references

Acknowledgements

Financial supports from EPSRC for the future LiME hub and from HAFCE, UK are gratefully acknowledged. The helps from M. Terada and D. Edwards at ZEISS Ltd. are appreciated.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Shouxun Ji .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2017 The Minerals, Metals & Materials Society

About this paper

Cite this paper

Ji, S., Watson, D., Fan, Z. (2017). X-Ray Computed Tomographic Investigation of High Pressure Die Castings. In: Ratvik, A. (eds) Light Metals 2017. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-51541-0_104

Download citation

Publish with us

Policies and ethics