Effect of Ce addition on hot deformation behavior and microstructure evolution of AZ80 magnesium alloy

Li, Zhu-Jin; Wang, Jinguo; Yan, Ruifang; Chen, Ze‐Yu; Ni, Tianyi; Dong, Zhong-Qiang; Lu, Tianshi

doi:10.1016/j.jmrt.2021.12.083

Cited by 32 publications

(4 citation statements)

References 39 publications

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Section: Introductionmentioning

confidence: 99%

“…In order to achieve the stated purpose, many researchers have attempted to add alloying elements to the AZ series alloys, and this has been considered as one of the most effective methods [ 3 , 4 , 5 , 6 , 7 ]. For example, recently Li et al [ 3 ] investigated the effect of Ce addition on the hot deformation behavior and microstructure evolution of as-cast AZ80 alloy. They pointed out that the formation of Al 4 Ce phases with a high melting point was beneficial for impeding the movement of dislocations and inducing higher peak stress in as-cast AZ80-Ce alloy than in as-cast AZ80 during hot compression.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Bi Addition on the Heat Resistance of As-Extruded AZ31 Magnesium Alloy

et al. 2023

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In this work, we investigate the impact of Bi addition on the heat resistance of as-extruded AZ31 alloy during high-temperature annealing and hot compression. Electron backscattered diffraction (EBSD) technique and quasi in situ scanning electron microscopy (SEM) are used to analyze the evolution of microstructures during high-temperature annealing and hot compression, respectively. The test results show that with a prolonged annealing time, the as-extruded AZB313 alloy exhibited a lower grain growth rate, due to the pinning effect of Mg3Bi2 phases distributed at grain boundaries. On the other hand, as the compressive temperature increased, the downtrend of strength is delayed in the as-extruded AZB313 alloy. Thermally stable Mg3Bi2 phases dispersed within the grains act as barriers, hindering the motion of dislocations, which not only provides a more effective precipitation strengthening effect, but also increases the resistance to deformation of grains. Moreover, grain boundary sliding can also be restricted by Mg3Bi2 phases located at grain boundaries. This work provides a new idea for the development of heat-resistant wrought Mg alloys.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Bi Addition on the Heat Resistance of As-Extruded AZ31 Magnesium Alloy

et al. 2023

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“…Magnesium alloy is known as the green metal of the 21st century, due to its low density, high specific strength, excellent electromagnetic shielding effect, and recyclability, showing a wide spectrum of applications and development space [1][2][3][4][5] . Improving the performance of magnesium alloys and identifying a suitable magnesium alloy for engineering applications is a pressing issue.…”

Section: Introductionmentioning

confidence: 99%

Study on Hot Deformation Behavior and Microstructure Evolution of MgAlCuZnMnCe Alloy

Chunyu,

Nan,

Tongyu

et al. 2023

J. Phys.: Conf. Ser.

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The Mg79Al12.5Cu2.5Zn4MnCe multi-principal element alloys was prepared by induction melting under a high-purity argon. The true stress-strain curves at deformation temperatures of 250-350°C and strain rates of 0.001-1s−1 were used to establish the constitutive equations as well as the thermal processing map. The optimal hot processing parameters for the alloy were determined as a deformation temperature of 320-350°C and a strain rate of 0.1-1s−1. Further investigation into the impact of various deformation parameters on the microstructure and macrotexture of the alloy during hot compression was conducted. The findings indicate that at a deformation rate of 1s−1, the second phase of the alloy is broken and deformed. The texture intensity follows a pattern of initially decreasing and then increases as the temperature rises. The change in grain size is influenced by the deformation crushing effect, initiation of the non-substrate slip system, and grain growth. When the strain rate increases, the changes in texture intensity and distribution are not pronounced, indicating that the strain rate has minimal influence on the macro texture.

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“…Within grains, the activation of massive slip systems accelerates the dislocation rearrangement to form low-angle grain boundaries (LAGBs), which provide a precursor for the generation of large-angle grain boundaries (HAGBs). For example, Li et al [29] pointed out that Ce addition into AZ80 alloy presented a lower activation energy than that in without Ce. In addition to non-basal slip, contraction twinning and/or double twinning also could occur in the early stage of hot deformation in Y-containing Mg-Sn-Zn alloy, as reported by Wang et al [30].…”

Section: Introductionmentioning

confidence: 99%

Establishment of Constitutive Model and Analysis of Dynamic Recrystallization Kinetics of Mg-Bi-Ca Alloy during Hot Deformation

Wang

Zhai

et al. 2022

Materials

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The flow behavior of the solution-treated Mg-3.2Bi-0.8Ca (BX31, wt.%) alloy was systematically investigated during hot compression at different deformation conditions. In the present study, the strain-related Arrhenius constitutive model and dynamic recrystallization (DRX) kinetic model were established, and the results showed that both two models had high predictability for the flow curves and the DRX behavior during hot compression. In addition, the hot processing maps were also made to confirm a suitable hot working range. Under the assistance of a hot processing map, the extrusion parameters were selected as 573 K and 0.5 mm/s. After extrusion, the as-extruded alloy exhibited a smooth surface, a fine DRX structure with weak off-basal texture and good strength–ductility synergy. The newly developed strong and ductile BX31 alloy will be helpful for enriching low-cost, high-performance wrought Mg alloy series for extensive applications in industries.

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Effect of Ce addition on hot deformation behavior and microstructure evolution of AZ80 magnesium alloy

Cited by 32 publications

References 39 publications

Effect of Bi Addition on the Heat Resistance of As-Extruded AZ31 Magnesium Alloy

Effect of Bi Addition on the Heat Resistance of As-Extruded AZ31 Magnesium Alloy

Study on Hot Deformation Behavior and Microstructure Evolution of MgAlCuZnMnCe Alloy

Establishment of Constitutive Model and Analysis of Dynamic Recrystallization Kinetics of Mg-Bi-Ca Alloy during Hot Deformation

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