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X-ray computed tomography to investigate industrial cast Al-alloys

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Abstract

This paper describes the use of X-ray computed tomography (XCT) to inspect the internal defects of industrial Aluminum alloys die-casting, to justify the adequateness of super sealant resins in filling tiny holes, and to reduce the casting porosity of metals by the impregnation process. High-resolution 2D slice images were generated by a microfocus X-ray CT system with direct conversion Cadmium Telluride (CdTe) flat panel detector (FPD). Moreover, we were able to visualize the internal defects of the two different shapes of casting objects. The gray-value contrasts of the CT images were excellent to distinguish the resin material in the alloy samples after impregnation treatment. Furthermore, to determine the dimensions of internal defects, virtual sectioning was carried out to view the cross-section of the metal samples and dimensions of internal defects. Dual-energy X-ray computed tomography (DXCT) was used with an energy differentiation type 64-pixel linear array photon-counting line sensor for the material characterization. The impregnated resin part inside the castings defects was verified based on the effective atomic number with a 2.92% low error margin. Hence, this will be a useful qualitative and quantitative advancement to rapid and detailed non-destructive analysis within the die-casting industries in improving the quality of the impregnation process.

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References

  1. Engelberger JF (1980) Die casting applications. Robotics in practice. Springer, Boston

    Google Scholar 

  2. Casarotto F, Franke AJ, Franke R (2012) 6—High-pressure die-cast (HPDC) aluminium alloys for automotive applications. In: Rowe J (ed) Advanced materials in automotive engineering. Woodhead Publishing, Sawston, pp 109–149. https://doi.org/10.1533/9780857095466.109

    Chapter  Google Scholar 

  3. Benedyk JC (2010) Aluminium alloys for lightweight automotive structures, a volume in Woodhead Publishing series in composite science and engineering, materials, design and manufacturing for lightweight vehicles, pp 79–113

    Chapter  Google Scholar 

  4. Kaufman JG (2000) Introduction to aluminum alloys and tempers. ASM International, United States

    Google Scholar 

  5. Fiorese E, Bonollo F, Timelli G et al (2015) Inter Metalcast 9:55. https://doi.org/10.1007/BF03355602

    Article  Google Scholar 

  6. Kanno T (1997) An Introduction to die casting technology. Nikkan-kogyo-sinbunsha, Tokyo, pp 227–247

    Google Scholar 

  7. American Society for Testing of Materials ASTM E1742/E1742M, “Standard Practice for Radiography Examination”, Annual book of ASTM standards 2011 (03.03)

  8. Bossi RH, Georgeson GE (1992) Computed tomography analysis of castings, Boeing Defense and Space Group Seattle WA Aerospace and Electronics Div

  9. Baruchel J, Buffiere JY, Maire E, Merie P. and Peix (eds) G (2000). X-ray tomography in material science, 204; Hermes Paris Science publication, France

  10. Salvo L, Cloetens P, Maire E, Zabler S, Blandin JJ, Buffiere JY et al (2003) X-ray micro-tomography an attractive characterization technique in materials science. Nucl Instrum Meth Phys Res B 200:273–286

    Article  Google Scholar 

  11. Kastner J, Heim D, Salaberger D, Sauerwein Ch, Simon M (2006) Advanced applications of computed tomography by combination of different methods. In: Proceedings of 9th European Conference on Non-destructive Testing, Berlin. September 25–29, 2006

  12. Kastner J (2008) editor. Proceedings Industrielle Computertomografietagung; Wels, Austria, 26–27 February 2008

  13. Reinhart C (2008) Industrial computer tomography—A universal inspection tool. In: 17th world conference on nondestructive testing. 25–28 Oct 2008, Shanghai, China

  14. Ohno Y, Torikoshi M, Tsunoo T, Hyodo K (2005) Dual-energy x-ray CT with CdTe array and its extension. Nucl Instrum Methods Phys Res, Sect A 548:72–77. https://doi.org/10.1016/j.nima.2005.03.069

    Article  Google Scholar 

  15. Torikoshi M, Tsunoo T, Endo M, Noda K, Kumada M, Yamada S, Soga F, Hyodo K (2001) Design of synchrotron light source and its beamline dedicated to dual-energy x-ray computed tomography. J Biomed Opt 6(3):371–377

    Article  Google Scholar 

  16. Kastner J, Harrer B, Degischer HP (2011) High resolution cone beam X-ray computed tomography of 3D-microstructures of cast Al-alloys. Mater Charact 62:99–107

    Article  Google Scholar 

  17. Kan K, Imura Y, Morii H, Kobayashi K, Minemura T, Aoki T (2013) Application of photon-counting X-ray computed tomography to aluminum-casting inspection. World J Nucl Sci Technol 3:106–108

    Article  Google Scholar 

  18. Du Plessis A, Rossouw P (2015) X-ray computed tomography of a titanium aerospace investment casting. Case Stud Nondestruct Test Eval. https://doi.org/10.1016/j.csndt.2015.03.001

    Article  Google Scholar 

  19. Lauritsch G, Haerer WH (1998) A theoretical framework for filtered backprojection in tomosynthesis. Proc SPIE 3338:1127–1137

    Article  Google Scholar 

  20. Jackson DF, Hawkes DJ (1981) X-ray attenuation coefficients of elements and mixtures. Phys Rep 70(3):169–233

    Article  Google Scholar 

  21. Hawkes DJ, Jackson DF (1980) An accurate parametrisation of the x-ray attenuation coefficient. Phys Med Biol 25(6):1167–1171

    Article  Google Scholar 

  22. Zou W, Nakashima T, Onishi Y, Koike A, Shinomiya B, Morii H, Neo Y, Mimura H, Aoki T (2008) Atomic number and electron density measurement using a conventional X-Ray tube and a CdTe detector. Jpn J Appl Phys 47(9):7317–7323

    Article  Google Scholar 

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Acknowledgements

We wish to thank Koji Kobayashi for his technical support to the impregnation process. This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

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Authors and Affiliations

  1. Hamamatsu TSC, Chuo Hatsumei Institute, 322 Lida-cho, Minami-ku, Hamamatsu, 435-0028, Japan

    Ajith Bandara & Koichi Kan

  2. ANSeeN Inc, Johoku 3-5-1, Hamamatsu, Shizuoka, 432-8561, Japan

    Hisashi Morii, Akifumi Koike & Toru Aoki

  3. Research Institute of Electronics, Shizuoka University, Johoku 3-5-1, Hamamatsu, Shizuoka, 432-8561, Japan

    Toru Aoki

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  1. Ajith Bandara
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  2. Koichi Kan
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  3. Hisashi Morii
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  4. Akifumi Koike
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  5. Toru Aoki
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Contributions

AB and HM carried out the experiment. AB wrote the manuscript with support from KK. AK and TA helped supervise the project. All authors discussed the results and contributed to the final manuscript.

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Correspondence to Ajith Bandara.

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Bandara, A., Kan, K., Morii, H. et al. X-ray computed tomography to investigate industrial cast Al-alloys. Prod. Eng. Res. Devel. 14, 147–156 (2020). https://doi.org/10.1007/s11740-019-00946-8

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  • DOI: https://doi.org/10.1007/s11740-019-00946-8

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