Microstructural and textural evolution of AZ61 magnesium alloy sheet during bidirectional cyclic bending

Huo, Qinghuan; Yang, Xuyue; Ma, Jingling; Sun, Hailin; Jia, Quanli; Jiang, Yupei

doi:10.1016/j.matchar.2013.03.001

Cited by 32 publications

(4 citation statements)

References 33 publications

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“…To date, many plastic deformation technologies have been developed to tailor the texture of wrought magnesium alloy sheets for improving their formability at room temperature [ 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ]. For instance, Suh et al [ 11 ] revealed that the cold formability of AZ31 Mg alloy sheets could be enhanced by weakening the basal texture of rolled AZ31 Mg alloy sheets using equal channel angular pressing (ECAP).…”

Section: Introductionmentioning

confidence: 99%

RETRACTED: Effect of Final Rolling Temperature on Microstructures and Mechanical Properties of AZ31 Alloy Sheets Prepared by Equal Channel Angular Rolling and Continuous Bending

Shi

Liu

et al. 2020

Materials

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The effects of final rolling temperature on the microstructures, texture and mechanical properties of AZ31 Mg alloy sheets prepared by equal channel angular rolling and continuous bending (ECAR-CB) were investigated. Extension twins {10–12} could be observed in the ECAR-CB deformed sheets. The increase in the number of {10–12} extension twins with increasing final rolling temperature might be attributed to the larger grain size and faster grain boundary migration. For all the ECAR-CB sheets at different final rolling temperatures, the deformation texture contains a basal texture component and a prismatic texture component, whereas the annealing recrystallization texture becomes a non-basal (pyramidal) texture with double peaks tilting away from normal direction (ND) to rolling direction (RD). With increasing final rolling temperature, the tilted angle of double peaks of annealing recrystallization non-basal texture increases. In addition, the plasticity and formability of ECAR-CB-A (ECAR-CB and then annealing) AZ31 Mg alloy sheets at room temperature can be improved by increasing the final rolling temperature.

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Section: Introductionmentioning

confidence: 99%

RETRACTED: Effect of Final Rolling Temperature on Microstructures and Mechanical Properties of AZ31 Alloy Sheets Prepared by Equal Channel Angular Rolling and Continuous Bending

Shi

Liu

et al. 2020

Materials

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“…However, such alloys exhibit poor formability at low temperatures, owing to the fact that their numbers of activating slip systems are insufficient to satisfy the von Mises yield criterion and because of their specific texture, which develops during the manufacturing process [4,5]. Therefore, magnesium alloys do not readily undergo large plastic deformations during the formation of thin strips through cold rolling at low temperatures unless the alloys are subjected to successive annealing treatments between the rolling steps.…”

Section: Introductionmentioning

confidence: 99%

Influence of constraint condition on rolling behavior of magnesium alloy at low temperatures

Kim

Lee

et al. 2015

Met. Mater. Int.

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Influence of constraint condition on rolling behavior of a magnesium alloy sheet at low temperature was investigated by embedding the magnesium alloy sheet within a block of an aluminum alloy having a higher strength. Magnesium alloy sheets rolled with the aluminum alloy block exhibited better rolling capability at a low temperature of 373 K than the sheets rolled without the block. The constraint placed on the magnesium alloy sheet by the aluminum alloy block impedes the initiation of edge cracks in the sheet during rolling by reducing the tensile stress generated along the rolling direction near the edge region of the magnesium alloy sheet. In addition, the constraint develop compressive stress along the transverse direction in the magnesium alloy sheet, which causes tensile twin and rotates the basal texture of the sheet to an orientation that is more capable of accommodating deformations along the normal direction. It is for these reasons that the embedded magnesium alloy sheet exhibits an improved rolling capability.

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“…At the same time, since 350℃ did not reach the temperature of DRX grains, Kinks and bends appeared. KBs can withstand plastic strain [16][17][18][19], consuming stored energy.…”

Section: Resultsmentioning

confidence: 99%

Microstructure Evolution and Mechanical Properties of Mg-Gd-Y-Zn-Zr Alloy during Compression

Jia

et al. 2021

MSF

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The compression behavior and mechanical properties of the Mg-13Gd-4Y-2Zn-0.5Zr (wt.%) alloy filled with intragranular long-period stacking ordered (LPSO) phases at different temperatures were investigated. The results showed that the higher the compression temperature, the smaller the plastic strain that the grains withstand. The grains changed from equiaxed to flat strips when compressed at 350°C, and the morphology of the grains did not change at 450°C. Due to the existence of DRX grains, compression at 450 °C didn’t cause large-angle kink, but the kink angle at 350°C was very large. DRX grains only appeared at the grain boundaries and around the intergranular LPSO phase at the beginning of compression, and only appear at the kink bands (KBs) after the lamellar LPSO phases begin to kink. DRX grains gradually increased with the KBs increasing.

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Microstructural and textural evolution of AZ61 magnesium alloy sheet during bidirectional cyclic bending

Cited by 32 publications

References 33 publications

RETRACTED: Effect of Final Rolling Temperature on Microstructures and Mechanical Properties of AZ31 Alloy Sheets Prepared by Equal Channel Angular Rolling and Continuous Bending

RETRACTED: Effect of Final Rolling Temperature on Microstructures and Mechanical Properties of AZ31 Alloy Sheets Prepared by Equal Channel Angular Rolling and Continuous Bending

Influence of constraint condition on rolling behavior of magnesium alloy at low temperatures

Microstructure Evolution and Mechanical Properties of Mg-Gd-Y-Zn-Zr Alloy during Compression

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