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 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.
Original language | English |
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Article number | 30 |
Number of pages | 14 |
Journal | Metals : open access journal |
Volume | 6.2016 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2 Feb 2016 |
Keywords
- Accumulative roll bonding
- Grain refinement
- Mechanical properties
- Microstructure
- Ti/Al multi-layered composites