Plastic anisotropy of ultrafine grained aluminium alloys produced by accumulative roll bonding
作者： B. Beausir , J. Scharnweber , J. Jaschinski , H.-G. Brokmeier , C.-G. Oertel
DOI: 10.1016/J.MSEA.2010.02.006
关键词: Aluminium 、 Deformation (engineering) 、 Anisotropy 、 Strain rate 、 Metallurgy 、 Materials science 、 Accumulative roll bonding 、 Viscoplasticity 、 Ultimate tensile strength 、 Texture (crystalline) 、 Mechanical engineering 、 General Materials Science 、 Mechanics of Materials 、 Condensed matter physics
摘要: Abstract The plastic anisotropy of ultrafine grained aluminium alloys AA1050 and AA6016 produced by accumulative roll bonding (ARB) has been investigated tensile deformation via the Lankford parameter. average normal planar anisotropies slightly increase (from 0.6 to 0.9) decrease −0.7) as a function ARB cycles, respectively. global textures measured neutron diffraction are used simulate parameters plates after 0, 2, 4, 6 8 cycles with help viscoplastic polycrystal self-consistent model. Simulation results compared those from experiment discussed regard texture, strain rate sensitivity, grain shape slip system activity.
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