Mechanical Properties of an Accumulative Roll Bonded Aluminium Alloy Composite

O. Al-Buhamad; M. Zakaria  Quadir; Michael Ferry

doi:10.4028/www.scientific.net/MSF.618-619.551

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Novel Grain Boundary Solute Architecture in a Nanostructured Ultra-High Strength 7075 Aluminium Alloy
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Research and Development of Non-Ferrous Melting Energy
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Mechanical Properties of an Accumulative Roll Bonded Aluminium Alloy Composite
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Work- and Age-Hardening Behaviour of a Commercial AA7108 Aluminium Alloy
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Fatigue Crack Propagation Mechanisms of Long and Small Cracks in Al-Si-Mg and Al-Mg Cast Alloys
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Shearing Behaviour and Texture Evolution in Aluminium Sheet Deformed by Accumulative Roll Bonding
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HomeMaterials Science ForumMaterials Science Forum Vols. 618-619Mechanical Properties of an Accumulative Roll...

Mechanical Properties of an Accumulative Roll Bonded Aluminium Alloy Composite

Abstract:

A multilayered sheet composite of commercial purity Al and Al-0.3%Sc alloys was produced by accumulative roll bonding. The final sheet material consisted of 64 ultra fine grained layers, each of ~7.8mm in thickness. The as-deformed material was annealed at temperatures ranging from 250 to 350°C to study the changes in microstructure and their associated influence on mechanical properties. The as-deformed structures largely comprised of high angle grain boundaries in the Al layers and low angle grain boundaries in the Al(Sc) layers. During annealing, the structures in the Al(Sc) layers remained unaltered, whereas the Al layers recrystallized rapidly to the full layer thickness. The mechanical properties of the Al-Al(Sc) composite were measured and found to be unique in strength and ductility with annealing temperature having a significant influence on these properties.