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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.45  No.7 (2004)  >  pp.2389-2394

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Effect of ARB Cycle Number on Cell Morphology of Closed-Cell Al-Si Alloy Foam

Koichi Kitazono1), Seiji Nishizawa2), Eiichi Sato1) and Tetsuichi Motegi2)
1) Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency
2) Faculty of Engineering, Chiba Institute of Technology

Closed-cell Al-Si alloy foam was produced from two bulk alloy strips. Preform sheet containing titanium hydride (TiH2) particles was first manufactured through accumulative roll-bonding (ARB) processing. Large ARB cycle number was effective to achieve uniform distribution of the TiH2 particles in the Al-Si matrix. Following high temperature foaming tests revealed that high porosity and small pore size can be obtained from the preform prepared through large cycle number. These results indicate that a suitable ARB processing condition enables to optimize the cell microstructure of the metal foams.

foam, cell morphology, accumulative roll-bonding, porous material, aluminum-silicon alloy

Received: March 05, 2004
Accepted: May 11, 2004 , Published online: June 24, 2005
Copyright (c) 2005 The Japan Institute of Metals



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