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Processing and Development of a New High Strength Metal Foam

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Abstract

The research sited in this paper involves the development of new closed cell metal foam composite materials using powder metallurgy (PM) and gravity casting techniques. The foam is comprised of steel hollow spheres packed into a random dense arrangement, with the interstitial space between spheres occupied with a solid metal matrix. Using a casting technique, an aluminum alloy infiltrates the interstitial spaces between steel spheres. In a powder metallurgy method, steel spheres and iron powder are sintered to form a solid, closed cell structure. The measured densities of the Al-Fe composite foam and iron foam are 2.4 g/cm3 and 3.2 g/cm3, with relative densities of 42% and 41% respectively.

The hollow sphere metal foam composite materials developed in this study displayed superior compressive strength as compared to hollow sphere foams currently being produced. The compressive strength of the cast Al-Fe foam averaged 67 MPa over a region of 10 to 50% strain, while the steel PM foam averaged 45 MPa over the same strain region. Densification began at approximately 50% for the cast foam and 55% for the PM foam.

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References

  1. H. P. Degischer, B. Kriszt (ed.), Handbook of Cellular Metals, Willey VCH, Weinheim 2002.

    Book  Google Scholar 

  2. L. J. Gibson, M. F. Ashby, Cellular Solids, Structures and Properties, 2nd ed., Cambridge University Press, Cambridge, UK, 1997.

    Book  Google Scholar 

  3. M. F. Ashby, A. Evans, N.A. Fleck, L. J. Gibson, J.W. Hutchinson, H. N. G. Wadley, Metal Foams: A Design Guide, Butterworth-Heinemann, Massachusetts, 2000.

    Google Scholar 

  4. J. Banhart, Progress In Materials Science 46, 559–632, (2001).

    Article  CAS  Google Scholar 

  5. A. Rabiei, A.G. Evans, J.W. Hutchinson, “Heat Generation During the Fatigue of a Cellular Al Alloy,” Metallurgical and Materials Transactions A, vol. 31A, pp 1129–1136.

  6. Y. Sugimura, A. Rabiei, A.G. Evans, A.M. Harte, N.A. Fleck, “Compression Fatigue of a Cellular Al Alloy,” Materials Science and Engineering A, vol. A269, pp 38–48.

  7. Y. Sugimura, J. Meyer, M.Y. He, H. Bart-Smith, J. Grenstedt, A.G. Evans, “On the Mechanical Performance of Closed Cell Al Alloy Foams”, Acta Materialia, vol. 45 no 12, pp 5245–5259.

  8. J. L. Grenestedt in Influence Of Imperfections On Effective Properties Of Cellular Solids, edited by D. S. Schwartz, D.S. Shih, A.G. Evans, H.N. Wadley, (Mater. Res. Symp. Proc. 521, Warrendale, PA, 1998) pp. 3–13.

    Article  Google Scholar 

  9. Donald M. Kupp, T. Dennis Claar, Gunter Stephani, Ulf Waag, “Fabrication of Ti-based Components with Controlled Porosity.”

  10. O. Andersen, U. Waag, L. Schneider, G. Stephani, B. Kieback, “Novel Metallic Hollow Sphere Structures”, Advanced Engineering Materials 2000, 2, No. 4, pp 192–195.

    Article  CAS  Google Scholar 

  11. T. J. Lim, B. Smith, D.L. McDowell, “Behavior of a random hollow sphere metal foam”, Acta Materialia vol 50, no 11, pp. 2867–2879, 2002.

    Article  CAS  Google Scholar 

  12. W.F. Smith, Structure And Properties Of Engineering Alloys, 2nd ed. edited by R. Gibala, M. Tirrell, C. Wert (McGraw Hill, New York, NY, 1993) pp. 176–232.

    Google Scholar 

  13. Randall M. German, Particle Packing Characteristics, Metal Powder Industries Federation, Princeton, NJ, 1989.

    Google Scholar 

  14. ASM Metals Handbook, 9th Edition, vol 7 Powder Metallurgy, American Society for Metals, 1984.

  15. N. Dautzenberg, Powder Metallurgy International, vol 12, 1971.

  16. N. Dautzenberg, J. Hewing, Powder Metallurgy International, vol 9, 1977.

  17. L. Forss, “Factors Influencing Properties of Sintered Iron” in Perspectives in Powder Metallurgy, Vol 3, Plenum Press, New York, 1968.

  18. Randall M. German, Powder Metallurgy of Iron and Steel, John Wiley and Sons, New York, 1998.

    Google Scholar 

  19. A.E. Simone, L.J. Gibson, “Effects of Solid Distribution on the Stiffness and Strength of Metallic Foams”, Acta Materialia, vol 46, 1998, pp 2139–2150.

    Article  CAS  Google Scholar 

  20. H. Bart-Smith, A. F. Bastawros, D. R. Mumm, A. G. Evans, D. J. Sypeck, H. N. G. Wadley, “Compressive deformation and yielding mechanisms in cellular Al alloys determined using X-ray tomography and surface strain mapping”, Acta Materialia, vol 46, 1998, pp 3583–3592.

    Article  CAS  Google Scholar 

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Acknowledgments

The authors would like to acknowledge the support from NSF-DMII for funding this research.

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Authors and Affiliations

  1. Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC, 27695-7910, U.S.A.

    A. Rabiei, Adrian T. O’Neill & Brian P. Neville

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  1. A. Rabiei
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  2. Adrian T. O’Neill
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  3. Brian P. Neville
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Rabiei, A., O’Neill, A.T. & Neville, B.P. Processing and Development of a New High Strength Metal Foam. MRS Online Proceedings Library 851, 117–126 (2004). https://doi.org/10.1557/PROC-851-NN11.4

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