Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-23T06:44:40.880Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of alumina (Al2O3) addition on the cell structure and mechanical properties of 6061 foams

Published online by Cambridge University Press:  09 July 2013

Nazim Mahmutyazicioglu ,
Onder Albayrak ,
Mehmet Ipekoglu  and
Sabri Altintas
Nazim Mahmutyazicioglu
Affiliation:
Department of Mechanical Engineering, Bogazici University, Bebek 34342, Istanbul, Turkey
Onder Albayrak*
Affiliation:
Department of Mechanical Engineering, Mersin University, Yenisehir 33343, Mersin, Turkey
Mehmet Ipekoglu
Affiliation:
Department of Mechatronic Systems Engineering, Turkish-German University, Beykoz 34820, Istanbul, Turkey
Sabri Altintas
Affiliation:
Department of Mechanical Engineering, Bogazici University, Bebek 34342, Istanbul, Turkey
*
a)Address all correspondence to this author. e-mail: albayrakonder@mersin.edu.tr
Get access

Abstract

In this study, a powder blend representing 6061 Al-alloy was first mixed with Al2O3 ceramic particles and then foamed by using the powder compact melting method. 6061-Al2O3 foams and control specimens 6061 foams (without ceramic reinforcement) were produced. The effects of both different ratios of Al2O3 particle addition and different kinds of heat treatment on hardenability, structure and mechanical behavior of the final foams were investigated. Foams that were fully heat treated had the highest hardness values, and they performed best with an increase in collapse strength up to 100% over the untreated samples. Improved cell structure and decreased drainage were obtained when the Al2O3 addition was not more than 5 vol%. The compression test results were interpreted in terms of the foam’s microstructure, and correlations were made relating to the unloading modulus and compression strength of the foams to the relative density.

Keywords

foamcellular (material form)Al
Type
Articles
Information
Journal of Materials Research , Volume 28 , Issue 17: Focus Issue: Advances in the Synthesis, Characterization, and Properties of Bulk Porous Materials , 14 September 2013 , pp. 2509 - 2519
Copyright
Copyright © Materials Research Society 2013 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Banhart, J.: Manufacture, characterization and application of cellular metals and metal foams. Prog. Mater. Sci. 46, 559 (2001).CrossRefGoogle Scholar
Banhart, J.: Metal foams: Production and stability. Adv. Eng. Mater. 8, 781 (2006).CrossRefGoogle Scholar
Gergely, V. and Clyne, B.: The FORMGRIP process: Foaming of reinforced metals by gas release in precursors. Adv. Eng. Mater. 2, 175 (2000).3.0.CO;2-W>CrossRefGoogle Scholar
Baumeister, J. and Schrader, H.: Methods for manufacturing foamable metal bodies. U.S. Patent 5 151 246, 1992.Google Scholar
Körner, C., Arnold, M., and Singer, R.F.: Metal foam stabilization by oxide network particles. Mater. Sci. Eng., A. 396, 28 (2005).CrossRefGoogle Scholar
Lehmhus, D. and Busse, M.: Potential new matrix alloys for production of PM aluminium foams. Adv. Eng. Mater. 6, 391 (2004).CrossRefGoogle Scholar
Von Zeppelin, F., Hirscher, M., Stanzick, H., and Banhart, J.: Desorption of hydrogen from blowing agents used for foaming metals. Compos. Sci. Technol. 63, 2293 (2003).CrossRefGoogle Scholar
Matijasevic, B. and Banhart, J.: Improvement of aluminium foam technology by tailoring of blowing agent. Scr. Mater. 54, 503 (2005).CrossRefGoogle Scholar
Matijasevic-Lux, B., Banhart, J., Fiechter, S., Görke, O., and Wanderka, N.: Modification of titanium hydride for improved aluminium foam manufacture. Acta Mater. 54, 1887 (2006).CrossRefGoogle Scholar
Kennedy, A.R.: The effect of TiH2 heat treatment on gas release and foaming in Al-TiH2 preforms. Scr. Mater. 47, 763 (2002).CrossRefGoogle Scholar
Kennedy, A.R. and Asavavisithchai, S.: Effect of ceramic particle additions on foam expansion and stability in compaced Al-TiH2 powder precursors. Adv. Eng. Mater. 6, 400 (2004).CrossRefGoogle Scholar
Elbir, S., Yilmaz, S., Toksoy, A.K., Guden, M., and Hall, I.W.: SiC-particulate aluminum composite foams produced by powder compacts: Foaming and compression behavior. J. Mater. Sci. 38, 4745 (2003).CrossRefGoogle Scholar
Kennedy, A.R. and Asavavisithchai, S.: Effects of TiB2 particle addition on the expansion, structure and mechanical properties of PM Al foams. Scr. Mater. 50, 115 (2004).CrossRefGoogle Scholar
Asavavisithchai, S. and Kennedy, A.R.: The effect of Mg addition on the stability of Al-Al2O3 foams made by a powder metallurgy route. Scr. Mater. 54, 1331 (2006).CrossRefGoogle Scholar
Esmaeelzadeh, S., Simchi, A., and Lehmhus, D.: Effect of ceramic particle addition on the foaming behavior, cell structure and mechanical properties of P/M AlSi7 foam. Mater. Sci. Eng., A 424, 290 (2006).CrossRefGoogle Scholar
Haesche, M., Weise, J., Garcia-Moreno, F., and Banhart, J.: Influence of particle additions on the foaming behavior of AlSi11/TiH2 composites made by semi-solid processing. Mater. Sci. Eng., A. 480, 283 (2008).CrossRefGoogle Scholar
Lehmhus, D. and Banhart, J.: Properties of heat-treated aluminium foams. Mater. Sci. Eng., A 349, 98 (2003).CrossRefGoogle Scholar
Ashby, M.F., Evans, A.G., Fleck, N.A., Gibson, L.J., Hutchinson, J.W., and Wadley, H.N.G.: Metal Foams: A Design Guide (Butterworth Heineman, MA, 2000).Google Scholar
Degischer, H.P. and Kriszt, B.: Handbook of Cellular Metals: Production, Processing, Applications (Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany, 2002).CrossRefGoogle Scholar
Körner, C.: Foam formation mechanisms in particle suspensions applied to metal foams. Mater. Sci. Eng., A. 495, 227 (2008).CrossRefGoogle Scholar
Dudka, A., Garcia-Moreno, F., Wanderka, N., and Banhart, J.: Structure and distribution of oxides in aluminium foam. Acta Mater. 56, 3990 (2008).CrossRefGoogle Scholar
Gibson, L.J. and Ashby, M.F.: Cellular Solids: Structure and Properties, 2nd ed. (Cambridge Solid State Science Series, Cambridge, England, 1999).Google Scholar
Ashby, M.F.: Criteria for selecting the components of composites. Acta Metall. Mater. 41, 1313 (1993).CrossRefGoogle Scholar
McCullough, K.Y.G., Fleck, N.A., and Ashby, M.F.: Uniaxial stress-strain behavior of aluminium alloy foams. Acta Mater. 47, 2323 (1999).CrossRefGoogle Scholar