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Crystals 2019, 9(2), 119; https://doi.org/10.3390/cryst9020119

A Combined Experiment and Crystal Plasticity FEM Study of Microstructure and Texture in Aluminium Processed by Reverse and Unidirectional Accumulative Roll-Bonding

School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
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Received: 23 January 2019 / Revised: 15 February 2019 / Accepted: 21 February 2019 / Published: 24 February 2019
(This article belongs to the Section Crystalline Materials)
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Abstract

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. View Full-Text
Keywords: accumulative roll-bonding (ARB); reverse ARB; crystal plasticity FEM; crystal rotation accumulative roll-bonding (ARB); reverse ARB; crystal plasticity FEM; crystal rotation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Wang, H.; Lu, C.; Tieu, K. A Combined Experiment and Crystal Plasticity FEM Study of Microstructure and Texture in Aluminium Processed by Reverse and Unidirectional Accumulative Roll-Bonding. Crystals 2019, 9, 119.

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