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http://dx.doi.org/10.4150/KPMI.2005.12.1.030

Accumulative Roll-Bonding of Al Powder Compact Fabricated by a Powder-in Sheath Rolling Method  

Lee, Seong-Hee (Department of Advanced Materials Science and Engineering, College of Engineering, Mokpo National University)
Publication Information
Journal of Powder Materials / v.12, no.1, 2005 , pp. 30-35 More about this Journal
Abstract
An aluminum powder compact consolidated by a powder-in sheath rolling (PSR) method was severely deformed by accumulative roll-bonding (ARB) process. The ARB process was performed up to 8 cycles at ambient temperature without lubrication. Optical microscope and transmission electron microscope observations revealed that microstructure of the ARB-processed Al powder compact is inhomogeneous in the thickness direction. The ultra-fine subgrains often reported in the ARB-processed bulky materials were also developed near surface of the Al powder compacts in this study. Tensile strength of the ARB-processed Al powder compact increased at the 1st cycle, but from the 2nd cycle it rather decreased slightly.
Keywords
Accumulative Roll-bonding (ARB); Al powder compact; Mechanical properties; Microstructure;
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Times Cited By KSCI : 3  (Citation Analysis)
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