Shape formation of closed-cell aluminum foam in solid–liquid–gas coexisting state
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The mold pressing process was applied to investigate the formability of closed-cell aluminum foam in solid–liquid–gas coexisting state. Results show that the shape formation of closed-cell aluminum foam in the solid–liquid–gas coexisting state was realized through cell wall deformation and cell movement caused by primary α-Al grains that slid, rotated, deformed, and ripened within cell walls. During formation, characteristic parameters of closed-cell aluminum foam were almost unchanged. Under proper forming conditions, shaped products of closed-cell aluminum foam could be fabricated through mold pressing.
Keywordsclosed-cell aluminum foam shape forming microstructure solid–liquid–gas coexisting state
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This work was financially supported by the National Natural Science Foundations of China (No. 51371104).
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