Static recrystallization study on pure aluminium using crystal plasticity finite element and phase-field modelling

Luan, Qinmeng; Lee, Junyi; Zheng, Zebang; Lin, Jianguo; Jiang, Jun

doi:10.1016/j.promfg.2018.07.211

Cited by 8 publications

(13 citation statements)

References 10 publications

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“…The CPFE model [21,30] is able to capture the heterogeneities of stress and strain distribution, by taking into account of the elastic and plastic crystal anisotropy. The model used in this work is implemented in the UMAT subroutine of ABAQUS software using an explicit scheme.…”

Section: Cpfe Modelmentioning

confidence: 99%

“…It is extremely important to thoroughly understand the formation of DBs for the study of recrystallization since it provides both the heterogeneous strain distribution and high orientation gradients regarding the crystallographic features. The amount of stored energy and orientation gradients after deformation would be important conditions for the formation of nucleation sites [21,22], affecting the recrystallization rate, recrystallized grain size and recrystallized orientation. For instance, single crystals that are deformed in single glide and recovered during annealing may not recrystallize.…”

Section: Introductionmentioning

confidence: 99%

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Experimental and crystal plasticity study on deformation bands in single crystal and multi-crystal pure aluminium

et al. 2020

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Deformation bands (DBs) formed in metals even in single crystals are known to give rise to the microstructural heterogeneities, thus contributing to some long-standing microstructure formation problems, such as the occurrence of recrystallization on the basis of deformed microstructure. Previous experimental transmission electron microscope (TEM) work has identified two types of DBs in the microscopic scale, i.e. kink bands and bands of secondary slips, showing the importance of understanding the slip activation for DBs. To extend the theory in mesoscale, single crystal and multi-crystal pure aluminium, as well as their corresponding crystal plasticity finite element (CPFE) models, are used in this paper to explore the effect of grain orientation, strain level and neighbouring grains on the formation of DBs. It is demonstrated that slip band intersection of primary and secondary slips is predicted to constrain the lattice sliding but facilitate the lattice rotation for the formation of DBs regarding the wall of DBs and its orientation. It is found that the impact of the above factors on the formation of DBs is caused by the slip field of primary slips. A sufficient amount of primary slips activated inside grains would be the key to the formation of distinct DBs with high area fraction and aspect ratio.

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Section: Cpfe Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental and crystal plasticity study on deformation bands in single crystal and multi-crystal pure aluminium

et al. 2020

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“…The first unsolved problem is the prediction of texture formation during recrystallization [2,[9][10][11][12]. Experimental observations in this work on the orientations of nucleated grains in deformed structures would provide the experimental and theoretical support for the computational model to assign orientations for nucleated grains.…”

Section: Introductionmentioning

confidence: 86%

“…grain orientation ) [27]. The diffuse-interface approach used in this work, instead of the sharp-interface approach, allows the evolution of arbitrary complex morphologies to be predicted without making any presumptions on the shape of grains [6,9,28]. In the diffuseinterface approach, the grain structure is represented by a set of variables that are continuous in space and time.…”

Section: Kwc Phase-field Modelmentioning

confidence: 99%

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Combining microstructural characterization with crystal plasticity and phase-field modelling for the study of static recrystallization in pure aluminium

Luan

Lee

Zheng

et al. 2020

Computational Materials Science

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An in-depth understanding of the recrystallization process in alloys is critical to manufacturing metal parts with superior properties. However, the development of recrystallization model under various processing conditions is still in its early research stage and becoming an urgent demand for both the manufacturing industry and scientific research. In this work, a validated numerical model that is capable of predicting the recrystallized grain structure, incubation time for the grain nucleation and texture evolution, was developed using a Kobayashi, Warren and Carter (KWC) phase-field model coupled with crystal plasticity finite element (CPFE) analysis. Through characterising the microstructure evolution of static recrystallization (SRX) by quasi-in-situ Electron Backscatter Diffraction (EBSD) mapping, insights into nucleation position, grain growth rate and orientation correlation between nucleated grains and initial grains were established and transferred into the computational model. This model enables a reliable and accurate prediction of recrystallized microstructure and texture for pure aluminium under different processing routes. It is believed that this physically-based modelling work in mesoscale will motivate further micromechanical modelling studies using crystal plasticity to predict the performance of structural alloys after thermomechanical processing.

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Modeling the Morphology Evolution of Recrystallized Grains of Aluminum Alloys Under Oriented Growth and Anisotropic Dispersoid Pinning

Liu,

Zhang,

Zhou

et al. 2024

Lecture Notes in Mechanical Engineering

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Static recrystallization takes place during the annealing of deformed metals, and the resulting fine or coarse, equiaxed or lath-like recrystallized grains together with various textures can have a significant effect on the material’s performance. In this work, oriented growth and anisotropic dispersoid pinning effects on boundary migration are taken into account in a cellular automaton model to simulate the morphology evolution of recrystallized grain in aluminum alloy. Diverse grain morphology can be predicted when varying the settings of annealing condition, and the underlying physical mechanism is discussed based on the simulated results.

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Static recrystallization study on pure aluminium using crystal plasticity finite element and phase-field modelling

Cited by 8 publications

References 10 publications

Experimental and crystal plasticity study on deformation bands in single crystal and multi-crystal pure aluminium

Experimental and crystal plasticity study on deformation bands in single crystal and multi-crystal pure aluminium

Combining microstructural characterization with crystal plasticity and phase-field modelling for the study of static recrystallization in pure aluminium

Modeling the Morphology Evolution of Recrystallized Grains of Aluminum Alloys Under Oriented Growth and Anisotropic Dispersoid Pinning

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