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Ti/Al Multi-Layered Sheets: Accumulative Roll Bonding (Part A)
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Jan Romberg, Jens Freudenberger, Hansjörg Bauder, Georg Plattner, Hans Krug, Frank Holländer, Juliane Scharnweber, Andy Eschke, Uta Kühn, Hansjörg Klauß, Carl-Georg Oertel, Werner Skrotzki, Jürgen Eckert and Ludwig Schultz
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Abstract
Co-deformation of Al and Ti by accumulative roll bonding (ARB) with intermediate heat treatments is utilized to prepare multi-layered Ti/Al sheets. These sheets show a high specific strength due to the activation of various hardening mechanisms imposed during deformation, such as: hardening by
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Co-deformation of Al and Ti by accumulative roll bonding (ARB) with intermediate heat treatments is utilized to prepare multi-layered Ti/Al sheets. These sheets show a high specific strength due to the activation of various hardening mechanisms imposed during deformation, such as: hardening by grain refinement, work hardening and phase boundary hardening. The latter is even enhanced by the confinement of the layers during deformation. The evolution of the microstructure with a special focus on grain refinement and structural integrity is traced, and the correlation to the mechanical properties is shown.
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