Abstract
In the present study, closed-cell aluminum foams with different percentages of erbium (Er) element were successfully prepared. The distribution and existence form of erbium (Er) element and its effect on the compressive properties of the foams were investigated. Results show that Er uniformly distributes in the cell walls in the forms of Al3Er intermetallic compound and Al-Er solid solutions. Compared with commercially pure aluminum foam, Er-containing foams possess higher micro-hardness, compressive strength and energy absorption capacity due to solid solution strengthening and second phase strengthening effects. Additionally, the amount of Er element should be controlled in the range of 0.10wt.%–0.50wt.% in order to obtain a good combination of compressive strength and energy absorption properties
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Male, born in 1981, PH.D, Associate Researcher. Research interests: casting of light metals and application of metal foams.
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Zhao, Wm., Zhang, Z., Wang, Yn. et al. Compressive characteristics of closed-cell aluminum foams with different percentages of Er element. China Foundry 13, 36–41 (2016). https://doi.org/10.1007/s41230-016-5109-8
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DOI: https://doi.org/10.1007/s41230-016-5109-8