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Journal of Materials Science: Materials Theory
Fig. 3 | Journal of Materials Science: Materials Theory

Fig. 3

From: Role of interfaces on the mechanical response of accumulative roll bonded nanometallic laminates investigated via dislocation dynamics simulations

Fig. 3

Overall simulation strategy starting with a random seed of initial dislocation loops (a) for both layers. Each color of the loop represents different slip systems in the fcc (Cu) and bcc (Fe) layers with a layer thickness of 200 nm. The relaxed network configuration after the pre-strain-relaxation loading condition is also shown (b), which is used to perform the subsequent loading simulations of the sample Z normal compression and sample YZ shear compression. The pre-strain-relaxation condition involves a load stage where a high stress state is imposed for a short amount of time, followed by a long relaxation period under zero stress boundary condition. This loading stress state is selected to emulate (at least partially) the ARB processing condition with sample Y and Z being the normal direction (ND) and rolling directions, respectively

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