A crystal plasticity FEM study on macro- and micro-subdivision of an aluminium single crystal after multi-pass unidirectional rolling, reverse rolling and accumulative roll-bonding

2020 ◽  
Vol 111 (1-2) ◽  
pp. 37-51
Author(s):  
Hui Wang ◽  
Cheng Lu ◽  
Rui Wang
Crystals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 119 ◽  
Author(s):  
Hui Wang ◽  
Cheng Lu ◽  
Kiet Tieu

In this report, reverse accumulative roll-bonding (ARB) was conducted for the first time. It was found that the microstructure after reverse ARB was relatively coarser than that after unidirectional ARB, and texture intensity was slightly weaker. In addition to the experimental study, the crystal plasticity finite element method was applied to the ARB-processed polycrystalline aluminium. The simulation followed the real deformation of reverse ARB and unidirectional ARB, and the predictions were validated by the experimental observations. Compared to the second cycle of unidirectional ARB, the crystal orientations (after the first cycle) were relatively unstable during the second cycle of reverse ARB, which is believed to be the reason for the relatively coarser microstructure after reverse ARB.


2018 ◽  
Vol 156 ◽  
pp. 342-355 ◽  
Author(s):  
C.S. Hyun ◽  
M.S. Kim ◽  
S.-H. Choi ◽  
K.S. Shin

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