Affiliation:
1. Osaka University
2. Beijing University of Technology
Abstract
Ultra-low carbon steel (ferritic steel), commercial purity aluminum and high purity copper
were heavily deformed by the accumulative roll bonding (ARB) process, and the microstructural
evolution during the ARB was analyzed. Significant grain refinement by grain subdivision
mechanism was confirmed in all three kinds of materials. On the other hand, microstructure
refinement slowed down with increasing strain and the grain size stayed in nearly a constant value in
the ultrahigh strain region. The mechanism of the grain size saturation was discussed.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
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