Anisotropy of wrought magnesium alloys: A focused overview

Shi, Baodong; Yang, Chong; Peng, Yan; Zhang, Fucheng; Pan, Fusheng

doi:10.1016/j.jma.2022.03.006

Cited by 57 publications

(9 citation statements)

References 329 publications

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“…The anisotropic yield criteria mentioned above have been mostly used for sheet metals with body-centered cubic and face-centered cubic structures, such as high-strength steels or aluminium alloys. However, hexagonal close-packed (HCP) metals, such as magnesium alloys and titanium alloys, show obvious tension-compression asymmetry (TCA), i.e., strength differential (SD) effect under small plastic strain [ 137 , 138 ]. In addition, recent studies have found that third-generation advanced high-strength steels (AHSS) such as Q&P steels exhibit significant SD effect [ 21 , 139 , 140 ].…”

Section: Constitutive Modelling Of Lightweight Alloysmentioning

confidence: 99%

“…Due to the various hardening mechanisms, experiments show that hardening behaviors are stress-state-dependent and loading-orientation-dependent even under the proportional loadings [ 137 , 148 , 149 , 154 ]. These evolving yield surfaces cannot be captured by the anisotropic yield functions with isotropic hardening.…”

Section: Constitutive Modelling Of Lightweight Alloysmentioning

confidence: 99%

“…Qiao et al [ 208 ] proposed a simple empirical equation to model the twinning kinematics of magnesium alloy sheets. Recently, Shi et al [ 137 ] reviewed the physics-based mesoscale modelling for the anisotropy of magnesium alloys. The mechanical responses of magnesium alloy sheets under different loading conditions, e.g., strain path changes [ 209 , 210 , 211 , 212 ], various strain rates [ 213 , 214 , 215 ] and elevated temperatures [ 216 , 217 ], were investigated by using CP models.…”

Section: Constitutive Modelling Of Lightweight Alloysmentioning

confidence: 99%

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A Review of Characterization and Modelling Approaches for Sheet Metal Forming of Lightweight Metallic Materials

Hou

Myung

Park³

et al. 2023

Materials

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Lightweight sheet metals are attractive for aerospace and automotive applications due to their exceptional properties, such as low density and high strength. Sheet metal forming (SMF) is a key technology to manufacturing lightweight thin-walled complex-shaped components. With the development of SMF, numerical simulation and theoretical modelling are promoted to enhance the performance of new SMF technologies. Thus, it is extraordinarily valuable to present a comprehensive review of historical development in SMF followed by state-of-the-art advanced characterization and modelling approaches for lightweight metallic materials. First, the importance of lightweight materials and their relationship with SMF followed by the historical development of SMF are reviewed. Then, the progress of advanced finite element technologies for simulating metal forming with lightweight alloys is covered. The constitutive modelling of lightweight alloys with an explanation of state-of-the-art advanced characterization to identify the constitutive parameters are presented. Then, the formability of sheet metals with major influencing factors, the techniques for measuring surface strains in SMF and the experimental and modelling approaches for determining the formability limits are clarified. Finally, the review is concluded by affording discussion of the present and future trends which may be used in SMF for lightweight metallic materials.

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Section: Constitutive Modelling Of Lightweight Alloysmentioning

confidence: 99%

Section: Constitutive Modelling Of Lightweight Alloysmentioning

confidence: 99%

Section: Constitutive Modelling Of Lightweight Alloysmentioning

confidence: 99%

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A Review of Characterization and Modelling Approaches for Sheet Metal Forming of Lightweight Metallic Materials

Hou

Myung

Park³

et al. 2023

Materials

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“…Magnesium, with low density and high specific strength, is a structural material of interest for automotive and other light-weighting applications [98]. However, anisotropic mechanical properties and limited ductility are known issues associated with this material [99].…”

Section: Magnesiummentioning

confidence: 99%

$ρ$-CP: Open Source Dislocation Density Based Crystal Plasticity Framework for Simulating Thermo-Mechanical Deformation

Patra¹,

Chaudhary²,

Pai³

et al. 2023

Preprint

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This work presents an open source, dislocation density based crystal plasticity modeling framework, ρ-CP. A Kocks-type thermally activated flow is used for accounting for the temperature and strain rate effects on the crystallographic shearing rate. Slip system-level mobile and immobile dislocation densities, as well slip system-level backstress, are used as internal state variables for representing the substructure evolution during plastic deformation. A fully implicit numerical integration scheme is presented for the time integration of the finite deformation plasticity model. The framework is implemented and integrated with the open source finite element solver, Multiphysics Object-Oriented Simulation Environment (MOOSE). Example applications of the model are demonstrated for predicting the anisotropic mechanical response of single and polycrystalline hcp magnesium, strain rate effects and cyclic deformation of polycrystalline fcc OFHC copper, and temperature and strain rate effects on the deformation of polycrystalline bcc tantalum. Simulations of realistic Voronoitessellated microstructures as well as Electron Back Scatter Diffraction (EBSD) microstructures are demonstrated to highlight the model's ability to predict large deformation and misorientation development during plastic deformation.

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“…11 Mg-Li alloy rolling sheet is an important raw material for forming complex structural parts. The anisotropy in the plastic yield and flow induced in the rolling process will lead to anisotropic damage during the complex forming, 12,13 which restricts the high-performance complexity forming for the alloy rolling sheet. Therefore, investigating the plastic deformation mesoscopic damage evolution mechanism along the RD, DD, and TD directions of the Mg-Li alloy rolling sheet has great significance in improving the forming limit.…”

Section: Introductionmentioning

confidence: 99%

Investigation into the anisotropic damage behavior of LA103Z Mg‐Li alloy rolling sheet using X‐ray computed tomography and numerical modeling

Xu,

Qian,

et al. 2023

Fatigue Fract Eng Mat Struct

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The anisotropic damage behavior has a great influence on the formability of rolling sheets. This work aimed to investigate the anisotropic damage mechanism of the LA103Z Mg‐Li alloy rolling sheet by combining mesoscale detection and modeling. The X‐ray computed tomography (XCT) and scanning electron microscope (SEM) were applied to characterize the evolution of damage morphology and volume fraction in RD, DD, and TD directions of the rolling sheet. The GTN damage model was calibrated by the experimental results with the representative volume element (RVE) method. The anisotropic damage mechanism was revealed via experimental and modeling results. The micro void nucleation strain εN was critical to determine the initiation moment of the anisotropic damage. The continuous nucleation in RD direction, the severe growth in DD direction, and the massive coalescence in TD direction were the micro void evolution competition results that caused the anisotropy for damage mechanism and fracture strain.

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Anisotropy of wrought magnesium alloys: A focused overview

Cited by 57 publications

References 329 publications

A Review of Characterization and Modelling Approaches for Sheet Metal Forming of Lightweight Metallic Materials

A Review of Characterization and Modelling Approaches for Sheet Metal Forming of Lightweight Metallic Materials

$ρ$-CP: Open Source Dislocation Density Based Crystal Plasticity Framework for Simulating Thermo-Mechanical Deformation

Investigation into the anisotropic damage behavior of LA103Z Mg‐Li alloy rolling sheet using X‐ray computed tomography and numerical modeling

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