Application of Superplastic Flow to Manufacturing of Microcellular Aluminum Foams
A new application of superplasticity was proposed in the manufacturing process of metal foams. Preform sheets were manufactured using superplastic 5083 aluminum alloy sheets through accumulative roll-bonding (ARB) process. Microcellular aluminum foam plates with 50% porosity were produced through solid-state foaming under the superplastic condition. The cell shape was oblate spheroid, which is effective to reduce the thermal conductivity. The present aluminum foam plates have a potential as an excellent heat insulator.
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
S. Kamimura et al., "Application of Superplastic Flow to Manufacturing of Microcellular Aluminum Foams", Materials Science Forum, Vols. 475-479, pp. 3021-3024, 2005