The Mechanical Performance of ARB Fabricated Hybrid Lamellar Composite of Recovered/Recrystallized Al and Precipitation Hardened Al(Sc) Layers

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

doi:10.4028/www.scientific.net/MSF.667-669.481

Paper Titles

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Enhancing the Efficiency of ECAP Processing in Particle Redistribution by Combination of Different Processing Routes
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Decomposition of Nanostructured Martensite in Cu-Al Alloys Processed by High-Pressure Torsion
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Microstructure and Toughness of an AZ80 Mg Alloy Processed by ECAP and Ageing Treatment
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The Mechanical Performance of ARB Fabricated Hybrid Lamellar Composite of Recovered/Recrystallized Al and Precipitation Hardened Al(Sc) Layers
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Development of Ultra-Fine Grained Structure in an Al-5.4%Mg-0.5%Mn Alloy Processed by ECAP
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Microstructure Evolution in a Cu-Ag Alloy during Large Strain Deformation and Annealing
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Grain Refinement and Hardening Induced by Heavy Deformation Using Low Energy High Current Pulsed Electron Beam Surface Treatment
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Synergetic Effect of ECAP and Friction Stir Welding on Microstructure and Mechanical Properties of Aluminium Sheets
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The Mechanical Performance of ARB Fabricated Hybrid Lamellar Composite of Recovered/Recrystallized Al and Precipitation Hardened Al(Sc) Layers

Abstract:

Sheets of commercial purity aluminum and super saturated solid solution of 0.3% Sc were accumulatively roll bonded to form 64 alternating layers in a 0.5 mm thickness. The rolling was done at 350 °C to ensure dynamic recovery/recrystallization in Al layers and precipitation hardening of Al(Sc) layers during the rolling. The sheet crystallographic texture was distributed along β fibre orientations. The recrystallization texture of aluminum layers after annealed at 250-350 °C was randomly distributed. The tensile property of this novel composite has achieved a small improvement over the commercially available grades and delamination between the layers was identified as the key issue to improve in this fabrication technique.