This work investigates the effect of two different foaming materials on the energy absorption of closed-cell aluminum structures. For this purpose, two different cellular aluminum samples were prepared by incorporating TiH2 and CaCO3 as foaming agents into molten A356 aluminum alloy at 700°C. The SEM observation of the foam samples revealed that the cell structure of the foam produced with CaCO3 is comprised of a smaller and more uniform structure than the sample produced with TiH2. Uniaxial compressive tests were performed on the foam samples to evaluate the mechanical properties of closed-cell aluminum foams. The results indicated that in a 50% strain, the energy absorption of aluminum foam with calcium carbonate is about 100% more than a closed-cell structure, which has been foamed with titanium hydride.
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Translated from Problemy Prochnosti, No. 3, pp. 128 – 134, May – June, 2016.
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Movahedi, N., Mirbagheri, S.M.H. Comparison of the Energy Absorption of Closed-Cell Aluminum Foam Produced by Various Foaming Agents. Strength Mater 48, 444–449 (2016). https://doi.org/10.1007/s11223-016-9783-y
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DOI: https://doi.org/10.1007/s11223-016-9783-y