Abstract
This paper presents the results of micro-tensile testing of the individual struts that were extracted from open cell aluminum foams in the as-fabricated (F), annealed (O) and T6-strengthened (T6) conditions. The results reveal that foam struts are generally stronger and more dutile than the corresponding solid alloys under the same heat treatment conditions. The distinguished strut properties are attributed to the unique grain structures of the struts typically consisting of one grain or having bamboo-like grain structure. The measured strut strengths are also incorporated into mechanics models to estimate foam strengths. A comparison of the predicted and measured foam strengths shows that direct measurement of strut properties is critical to make precise estimation of foam strengths.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
L. J. Gibson and M. F. Ashby, “Cellular Solids: Structure and Properties,” 2nd ed. (Cambridge, UK, Cambridge University Press, 1997).
Y. Wang and A. M. Cuitino, J. Mechanicas and Phys. Solids 48 (2000) 961.
T. G. Nieh, K. Higashi and J. Wadsworth, Mater. Sci. Engng. A 283A (2000) 105.
G. Gioia, Y. Wang and A. M. Cuitiño, Proceedings of the Royal Society of London A 457 (2001) 1079.
C. San Marchi and A. Mortensen, Acta Materialia 49 (2001) 3959.
Y. W. Kwon, R. E. Cooke and C. Park, Mater. Sci. Engng. A 343 (2003) 63.
J. Zhou and W. O. Soboyejo, Engng. Manufacture and Materials, 2003 (accepted for publication).
M.F. Ashby, A. G. Evans, N. A. Fleck, L. J. Gibson, J. W. Hutchinson and H. N. G. Wadley, “Metal Foams—A Design Guide” (Butterworths Heinemann, London, UK, 2000).
J. Banhart, Progress in Materials Science 46 (2001) 559.
V. Gergely, R. L. Jones and W. Clyne, Transactions of JWRL 30 (2001) 371.
A. E. Markaki and T. W. Clyne, Acta Materialia 49 (2001) 1677.
A. E. Simone and L. J. Gibson, ibid. 46 (1998) 3109.
J. Zhou, C. Mercer, and W. O. Soboyejo, Metall. Mater. Transactions A 33 (2002) 1413.
D. Lehmhus, C. Marschner and J. Banhart, J. Mater. Sci. 37 (2002) 3447.
D. Lehmhus, J. Banhart and M. A. Rodriguez-Oerez, Mater. Sci. Tech. 18(1) (2002) 1.
J. Zhou, S. Allameh and W. O. Soboyejo, in Proceedings of the J. F. Knott Symposium: Mechanics of Fracture, edited by W. O. Soboyejo, J. J. Lewandowski, and R. O. Ritchie (TMS Fall Meeting, Columbus, OH, 2002) p. 199.
“ASM Metal Handbook” (ASM International, 1990, USA) Vol. 2.
A.-M. Harte, N. A. Fleck and M. F. Ashby, Acta Materialia 47 (1999) 2511.
P. Shrotriya, S. M. Allameh, J. Lou, T. Bucheit and W. O. Soboyejo, Mechanics and Mater. J. (2001) (Submitted).
W. N. Sharpe, Jr., B. Yuan, R. Vaidyanathan and R. L. Edwards, in Proceedings of the SPIE Symposium on Micolithography and Metrology in Micromachining II (Austin, TX, 1996) p. 78.
E. Andrews, W. Sanders and L. J. Gibson, Mater. Sci. Engng. A A270 (1999) 113.
A. E. Simone and L. J. Gibson, Acta Materialia 46 (1998), 3929.
R. Abbaschian and R. E. Reed-Hill, “Physical Metallurgy Principles,” 2nd ed. (PWS Publishing Company, Boston, MA, 1994).
E. N. DaC. Andrade and C. Henderson, Math. Physical Sci. 244 (1951) 177.
F. D. Rosi and C. H. Mathewson, Transaction of the AIME 188 (1950) 1159.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Zhou, J., Allameh, S. & Soboyejo, W.O. Microscale testing of the strut in open cell aluminum foams. J Mater Sci 40, 429–439 (2005). https://doi.org/10.1007/s10853-005-6100-8
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/s10853-005-6100-8