Effect of increased stretching deformation at cryogenic temperature on the precipitation behavior and mechanical properties of 2060 Al–Li alloy

Dong, Fei; Huang, Shiquan; Yi, Youping; He, Hailin; Huang, Ke; Gao, Shenglei; Jia, Yanzhen; Yu, Wenwen

doi:10.1016/j.msea.2021.142585

Cited by 36 publications

(6 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…ε and T, while neglecting the interactions between ε and the combined effects of . ε and T. The S1-MJC constitutive model for the AA2060 alloy was developed in this study as follows: σ = 492.31 + 883.74ε − 4376.80ε 2 + 4798.92ε 3 (1 + (0.0244 − 0.0189ε)ln ε . * ) 1 − T * (0.5717−0.1791ε) .…”

Section: Discussionmentioning

confidence: 99%

“…Al alloys are highly recyclable, fitting seamlessly into sustainable practices by allowing for their reuse and repurposing with a minimal loss of quality. This feature is precious in the context of modern environmental awareness, helping to lessen the consumption of resources and the environmental footprint [3]. Al alloys are commonly used in the automotive industry to manufacture engine blocks, frames, and body panels.…”

Section: Introductionmentioning

confidence: 99%

“…The constants of the S1-MJC model for the AA2060 alloy. = 492.31 + 883.74ε − 4376.80ε 2 + 4798.92ε3 (1 + (0.0244 − 0.0189ε)ln ε . * ) 1 − T * (0.5717−0.1791ε)(26) …”

mentioning

confidence: 99%

See 2 more Smart Citations

Modelling the Flow Behaviour of Al Alloy Sheets at Elevated Temperatures Using a Modified Zerilli–Armstrong Model and Phenomenological-Based Constitutive Models

Abd El-Aty,

Xu,

Hou

et al. 2024

Materials

View full text Add to dashboard Cite

The flow behaviour of AA2060 Al alloy under warm/hot deformation conditions is complicated because of its dependency on strain rates (ε˙), strain (ε), and deformation modes. Thus, it is crucial to reveal and predict the flow behaviours of this alloy at a wide range of temperatures (T) and ε˙ using different constitutive models. Firstly, the isothermal tensile tests were carried out via a Gleeble-3800 thermomechanical simulator at a T range of 100, 200, 300, 400, and 500 °C and ε˙ range of 0.01, 0.1, 1, and 10 s−1 to reveal the warm/hot flow behaviours of AA2060 alloy sheet. Consequently, three phenomenological-based constitutive models (L-MJC, S1-MJC, S2-MJC) and a modified Zerilli–Armstrong (MZA) model representing physically based constitutive models were developed to precisely predict the flow behaviour of AA2060 alloy sheet under a wide range of T and ε˙. The predictability of the developed constitutive models was assessed and compared using various statistical parameters, including the correlation coefficient (R), average absolute relative error (AARE), and root mean square error (RMSE). By comparing the results determined from these models and those obtained from experimentations, and confirmed by R, AARE, and RMSE values, it is concluded that the predicted stresses determined from the S2-MJC model align closely with the experimental stresses, demonstrating a remarkable fit compared to the S1-MJC, L-MJC, and MZA models. This is because of the linking impact between softening, the strain rate, and strain hardening in the S2-MJC model. It is widely known that the dislocation process is affected by softening and strain rates. This is attributed to the interactions that occurred between ε and ε˙ from one side and between ε, ε˙, and T from the other side using an extensive set of constants correlating the constitutive components of dynamic recovery and softening mechanisms.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modelling the Flow Behaviour of Al Alloy Sheets at Elevated Temperatures Using a Modified Zerilli–Armstrong Model and Phenomenological-Based Constitutive Models

Abd El-Aty,

Xu,

Hou

et al. 2024

Materials

View full text Add to dashboard Cite

show abstract

“…At low homologous temperatures, it is assumed that the dislocation glide on welldefined crystallographic slip systems is the dominant source of plastic deformation. Thus, the plastic flow can be written as: (6) where:…”

Section: 𝐅 = 𝐅 𝐞 𝐅 𝐩mentioning

confidence: 99%

“…AA2060-T8 is one of the third generation alloy families introduced in the last few years by Alcoa Inc. to replace the traditional Al alloys in aerospace applications [5]. Nevertheless, it shows poor formability and serious anisotropic behaviour notably at room temperature, limiting its industrial applications [6][7][8][9]. High strain rate deformation [10][11][12][13][14][15][16][17][18] and high temperature forming [19][20][21] are significant techniques for enhancing the formability of AA2060 sheets and addressing the drawbacks of conventional cold forming technologies.…”

Section: Introductionmentioning

confidence: 99%

Coupling Computational Homogenization with Crystal Plasticity Modelling for Predicting the Warm Deformation Behaviour of AA2060-T8 Al-Li Alloy

El-Aty

et al. 2023

Materials

View full text Add to dashboard Cite

This study aimed to propose a new approach for predicting the warm deformation behaviour of AA2060-T8 sheets by coupling computational homogenization (CH) with crystal plasticity (CP) modeling. Firstly, to reveal the warm deformation behaviour of the AA2060-T8 sheet, isothermal warm tensile testing was accomplished using a Gleeble-3800 thermomechanical simulator at the temperatures and strain rates that varied from 373 to 573 K and 0.001 to 0.1 s−1. Then, a novel crystal plasticity model was proposed for describing the grains’ behaviour and reflecting the crystals’ actual deformation mechanism under warm forming conditions. Afterward, to clarify the in-grain deformation and link the mechanical behaviour of AA2060-T8 with its microstructural state, RVE elements were created to represent the microstructure of AA2060-T8, where several finite elements discretized every grain. A remarkable accordance was observed between the predicted results and their experimental counterparts for all testing conditions. This signifies that coupling CH with CP modelling can successfully determine the warm deformation behaviour of AA2060-T8 (polycrystalline metals) under different working conditions.

show abstract

Effect of deep cryogenic treatment on microstructures and mechanical properties of automotive 6063Al alloy

Li,

Cao,

Wang

et al. 2024

J Mater Sci

View full text Add to dashboard Cite

Effect of increased stretching deformation at cryogenic temperature on the precipitation behavior and mechanical properties of 2060 Al–Li alloy

Cited by 36 publications

References 32 publications

Modelling the Flow Behaviour of Al Alloy Sheets at Elevated Temperatures Using a Modified Zerilli–Armstrong Model and Phenomenological-Based Constitutive Models

Modelling the Flow Behaviour of Al Alloy Sheets at Elevated Temperatures Using a Modified Zerilli–Armstrong Model and Phenomenological-Based Constitutive Models

Coupling Computational Homogenization with Crystal Plasticity Modelling for Predicting the Warm Deformation Behaviour of AA2060-T8 Al-Li Alloy

Effect of deep cryogenic treatment on microstructures and mechanical properties of automotive 6063Al alloy

Contact Info

Product

Resources

About