A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Modeling of microstructure and mechanical behavior of ultra fine grained aluminum produced by accumulative roll-bonding
Highlights ► Deformation in ARB process can be simulated by the dislocation density based model. ► In the studied material dynamic recovery in cell interior is governed by cross slip. ► In the studied material dynamic recovery in cell walls occurs by dislocation climb.
Abstract Mechanical behavior of AA1100 aluminum alloy processed by accumulative roll-bonding was modeled on the basis of a generalized three-dimensional dislocation-density-based two-phase composite model. The simulated yield stress and cell size were compared with the experimental data, obtained by accumulative roll-bonding after several passes. A good agreement between experimental and simulated results was obtained. The results showed that both yield stress and average cell size of the ultra fine grained materials, produced by accumulative roll-bonding, can be simulated using a dislocation-density-based two-phase model. Moreover, dynamic recovery in cell interior was governed by cross slip, while climb processes were responsible for that in cell walls.
Modeling of microstructure and mechanical behavior of ultra fine grained aluminum produced by accumulative roll-bonding
Highlights ► Deformation in ARB process can be simulated by the dislocation density based model. ► In the studied material dynamic recovery in cell interior is governed by cross slip. ► In the studied material dynamic recovery in cell walls occurs by dislocation climb.
Abstract Mechanical behavior of AA1100 aluminum alloy processed by accumulative roll-bonding was modeled on the basis of a generalized three-dimensional dislocation-density-based two-phase composite model. The simulated yield stress and cell size were compared with the experimental data, obtained by accumulative roll-bonding after several passes. A good agreement between experimental and simulated results was obtained. The results showed that both yield stress and average cell size of the ultra fine grained materials, produced by accumulative roll-bonding, can be simulated using a dislocation-density-based two-phase model. Moreover, dynamic recovery in cell interior was governed by cross slip, while climb processes were responsible for that in cell walls.
Modeling of microstructure and mechanical behavior of ultra fine grained aluminum produced by accumulative roll-bonding
Rezaee-Bazzaz, A. (author) / Ahmadian, S. (author) / Reihani, H. (author)
2011-04-05
6 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2011
| British Library Online Contents | 1999
| British Library Online Contents | 2007
Ultra-fine grained Cu sheets fabricated by accumulative roll-bonding at room temperature
| British Library Online Contents | 2007
Ultrafine grained AA1050/AA6061 composite produced by accumulative roll bonding
| British Library Online Contents | 2013