Role of Vanadium Addition on Hot Deformation Behavior of Aluminum Alloy 5083

Lijuan, Wang; Wang, Xiangjie; Zhu, Xiao Dong; Xü, Xinsheng; Chen, Jianzhong; Liao, Bin; Wang, Xiaodong; Wu, Xiaodong

doi:10.3390/met9070766

Cited by 3 publications

(3 citation statements)

References 24 publications

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“…Thermal processing maps can be important tools for understanding the deformation mechanisms during hot working, such as dynamic recovery, adiabatic shear, localized flow, stored energy, and subsequent recrystallization behavior [21]. These maps can be used effectively to avoid dangerous processing zones prone to fracture and defect generation, and to identify temperature/strain conditions for controlling the microstructure [16].…”

Section: Processing Maps and Microstructural Evolutionmentioning

confidence: 99%

“…However, the intrinsic workability of a material can also be described by a process diagram model, which includes kinetic, atomic, and dynamic material models (DMM) [17,18]. The DMM employed in this study consists of a power dissipation diagram with an instability diagram superimposed on it, a commonly used processing diagram that can visually identify the thermal processing safety zone and instability zone [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

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Study of Thermal Compression Constitutive Relation for 5182-Sc-Zr Alloy Based on Arrhenius-Type and ANN Model

Yang

Zhu

et al. 2022

Crystals

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Hot compression experiments were performed on alloy 5182 with small additions of Sc and Zr. The 5182 alloy containing Sc and Zr is critical for expanding the 5182 alloy’s range of applications, and a thorough understanding of its thermal processing behavior is of great importance to avoid processing defects. Alloy microstructure, including grain structures and Al3(ScxZr1−x) dispersoids were analyzed by EBSD and TEM. Stable flow stresses were observed below a strain rate of 1 s−1 for the Sc-Zr containing alloy. The results of constitutive models, with and without strain−compensation, and artificial neural network (ANN) were used to compare to the experimental results. The Al3(ScxZr1−x) dispersoid data was introduced into the ANN model as a nonlinear influence factor. Addition of the Al3(ScxZr1−x) dispersoid information as input data improved the accuracy and practicality of the artificial neural network in predicting the deformation behavior of the alloy. The squared correlation coefficients of ANN prediction data reached 0.99.

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Section: Processing Maps and Microstructural Evolutionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study of Thermal Compression Constitutive Relation for 5182-Sc-Zr Alloy Based on Arrhenius-Type and ANN Model

Yang

Zhu

et al. 2022

Crystals

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“…The Arrhenius equation can not only be used predicate to express the influences of temperature and strain rate on high-temperature flow stress, but also to obtain the hot deformation activation energy of the alloy [21,22], which can be expressed as follows preference:…”

Section: Modified Arrhenius Modelmentioning

confidence: 99%

Hot Deformation Characteristics and Processing Parameter Optimization of Al–6.32Zn–2.10Mg Alloy Using Constitutive Equation and Processing Map

Xiao

Wang

Huang

et al. 2021

Metals

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Hot compression tests over the temperature range from 350 °C to 500 °C and strain rates range from 0.001 s−1 to 1 s−1 for homogenized Al–6.32Zn–2.10Mg alloy were carried out on a Gleeble-3800 thermal simulation machine to characterize its hot deformation behavior. At the same time, a modified Arrhenius constitutive equation was established to describe the flow behavior of the alloy, whose average absolute error is 2.89%, which proved to have an excellent predictive effect on the flow stress of the alloy. The hot processing map of the alloy was established, and the stability processing parameters were 460–500 °C and 0.01–0.08 s−1. Then, the Z parameter processing map and activation energy processing (AEP) maps were established for further optimization. Eventually, the optimal processing parameters of the alloy was 460–500 °C (0.03–0.08 s−1). Then, the microstructure of specimens was observed using electron backscatter diffraction. Based on the findings the reasonability of the AEP map and Z parameter map was verified. Finally, electron backscatter diffraction (EBSD) techniques were used to analyze the evolution of the grain structure during the deformation process. It was found that dynamic recovery (DRV) was the main softening mechanism of Al–6.32Zn–2.10Mg. Continuous dynamic recrystallization (CDRX) and discontinuous dynamic recrystallization (DDRX) operated together with the increase of strain, but CDRX was confirmed as the dominant DRX mechanism.

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Hot Deformation Behavior and Microstructure Evolution of High-Strength Al-Zn-Mg-Cu Alloy

Cai

Chen

Yang

et al. 2022

Metals

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An isothermal compression experiment was conducted to study the rheological behavior of Al-4.57Zn-1.50Mg-1.92Cu high-strength aluminum alloy at strain rates ranging from 0.1 to 20 s−1 and temperatures in the range of 573 to 773 K. Then, the effects of strain, strain rate, and deformation temperature on material deformation were investigated through orthogonal experiment analysis. According to the research results, strain rate and temperature had significant effects on the level of flow stress. Besides, the constitutive equation was established and demonstrated as applicable to predict the performance accurately. Meanwhile, the processing map under a true strain of 1.1 was built, to assess the deformation safety in different domains. Furthermore, the evolutionary trend of microstructure was observed by means of Scanning Electron Microscope, Electron Back-Scattered Diffraction and Transmission Electron Microscope. It was discovered that dynamic recovery and small-scale dynamic recrystallization played a major role in the softening mechanism of alloy during hot deformation. Moreover, dynamic recrystallization was found to have a significant impact on the hot deformation behavior of the alloys.

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Role of Vanadium Addition on Hot Deformation Behavior of Aluminum Alloy 5083

Cited by 3 publications

References 24 publications

Study of Thermal Compression Constitutive Relation for 5182-Sc-Zr Alloy Based on Arrhenius-Type and ANN Model

Study of Thermal Compression Constitutive Relation for 5182-Sc-Zr Alloy Based on Arrhenius-Type and ANN Model

Hot Deformation Characteristics and Processing Parameter Optimization of Al–6.32Zn–2.10Mg Alloy Using Constitutive Equation and Processing Map

Hot Deformation Behavior and Microstructure Evolution of High-Strength Al-Zn-Mg-Cu Alloy

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