A new finite element model for multi-cycle accumulative roll-bonding process and experiment verification

Hui, Wang; Su, Lihong; Yu, Huimin; Lü, Cheng; Liu, Yu; Zhang, Jie

doi:10.1016/j.msea.2018.04.040

Cited by 39 publications

(33 citation statements)

References 38 publications

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“…The predicted textures after 1-ARB and 2-ARB were rolling-type textures, and the texture intensity after 2-UniARB was slightly higher than after 2-RevARB, in agreement with the experimental observations (Figure 2d-f). The agreement indicates the Generally, after unlubricated ARB, shear texture is found at the surface and rolling texture near the centre [1,2], and the grain size is respectively small and large at the surface and centre. However, in this study the through-thickness microstructure was almost uniform and rolling texture developed through almost the whole thickness, differing from the typical findings after unlubricated ARB [1,2], but similar to those after lubricated ARB [1].…”

Section: Resultssupporting

confidence: 78%

“…Generally, after unlubricated ARB, shear texture is found at the surface and rolling texture near the centre [1,2], and the grain size is respectively small and large at the surface and centre. However, in this study the through-thickness microstructure was almost uniform and rolling texture developed through almost the whole thickness, differing from the typical findings after unlubricated ARB [1,2], but similar to those after lubricated ARB [1]. This difference was due to the fact that the imposed shear strain in the current ARB experiment was very low, as measured by the deformed pins in Figure 2i.…”

Section: Resultsmentioning

confidence: 98%

“…The texture and microstructure evolution in materials processed by accumulative roll-bonding (ARB) are complex due to the repeated cycles of cutting, stacking, and roll-bonding [1,2]. In each ARB cycle, the imposed shear strain is not uniform through the thickness.…”

Section: Introductionmentioning

confidence: 99%

“…Multi-cycle ARB results in a complicated distribution of through-thickness shear strain. The evolution of microstructure and texture in ARB is associated with the imposed shear strain [2,3]. However, how the strain path change influences the transition of microstructure and texture during rolling has not been well studied.…”

Section: Introductionmentioning

confidence: 99%

“…In addition to experimental methods, texture modelling has become a powerful tool, but it has not been widely applied to ARB, as modelling of ARB is challenging [2,4]. Texture evolution in polycrystalline aluminium has been statistically studied by the Taylor model [5], ALAMEL model [4,6], and viscoplastic self-consistent model [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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

Wang

Lü

2019

Crystals

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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.

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Section: Resultssupporting

confidence: 78%

Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Wang

Lü

2019

Crystals

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Sandwich‐Like Cu/Al/Cu Composites Fabricated by Cryorolling

et al. 2020

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Herein, sandwich‐like Cu/Al/Cu composites are fabricated by hot rolling (300 °C), cold rolling (25 °C), cryorolling (−100 and −190 °C), respectively. Tensile tests are conducted and the fracture surfaces of both the Al and Cu sides are examined using scanning electron microscopy (SEM) for fractography and SEM‐based energy‐dispersive analysis. The microstructure of the composites is evaluated by optical microscopy and SEM. Results reveal that the highest ultimate tensile strength and the best ductility of the composites have been achieved using cryorolling of the rolling temperature −100 °C. Finally, discussion on grain size, bonding quality, and the thickness of the intermetallic layer between Cu and Al layers on the mechanical properties of the sandwich‐like Cu/Al/Cu composites is focused.

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The Effect of Preheating Temperature on the Forming Limit Diagram of AA1050/AA7050 Al Multilayered Sheets Produced by Accumulative Roll Bonding (ARB)

et al. 2022

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Multilayered sheets of AA1050 and AA7050 Al alloys produced by hot accumulative roll bonding (ARB) are tested to estimate their forming limit diagrams (FLDs). Sheets processed with preheating at 450 and 500 °C for up to six ARB cycles are submitted to Nakazima tests with an in situ digital image correlation system and tensile tests to analyze the mechanical behavior. X‐ray measurements and electron backscatter diffraction are performed to obtain the crystallographic texture and the mesotexture, respectively, and thus characterize the heterogeneous microstructure. A bimodal grain size distribution is observed in these sheets since AA7050 layers present elongated and fine grain size with nanometric precipitates and AA1050 layers present coarser and equiaxed grains. In addition, texture analysis indicates both rolling and shear components in the sheets. The FLDs show that the forming properties did not follow the expected rule of mixtures when compared with monolithic alloy sheets. Overall, the multilayered AA1050/AA7050 processed by means of ARB at 500 °C presents better formability than that at 450 °C, due to the combination of lower anisotropy measured by the Lankford coefficients values close to 1 and low normal anisotropy Δr values.

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A new finite element model for multi-cycle accumulative roll-bonding process and experiment verification

Abstract: A new finite element model for multi-cycle accumulative roll-bonding process and A new finite element model for multi-cycle accumulative roll-bonding process and experiment verification experiment verification

Cited by 39 publications

References 38 publications

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

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

Sandwich‐Like Cu/Al/Cu Composites Fabricated by Cryorolling

The Effect of Preheating Temperature on the Forming Limit Diagram of AA1050/AA7050 Al Multilayered Sheets Produced by Accumulative Roll Bonding (ARB)

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