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

• DOI: 10.2320/matertrans.45.2389
• Publication Date: 2005-10-17T06:19:41Z
• Authors: Koichi Kitazono; Seiji Nishizawa; Eiichi Sato; Tetsuichi Motegi
• Keywords: Accumulative roll bonding; Titanium hydride; Titanium alloy; Morphology; Cell size

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