Forming behavior of magnesium sheet

Wagoner, R. H.; Lou, Xiaoyuan; Li, M.; Agnew, Sean R.

doi:10.1016/j.jmatprotec.2006.04.121

Cited by 25 publications

(7 citation statements)

References 3 publications

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“…In the field of magnesium sheet metals the research focus lies on the formability, the quasi-static properties, and the microstructure in dependence on the rolling conditions (see e.g. [24,[37][38][39][40][41][42]). The fatigue behavior of sheet metals has been investigated only partially (see [22]).…”

Section: Introductionmentioning

confidence: 99%

Quasi-static and fatigue behavior of extruded ME21 and twin roll cast AZ31 magnesium sheet metals

Dallmeier

Huber

Saage

et al. 2014

Materials Science and Engineering: A

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Section: Introductionmentioning

confidence: 99%

Quasi-static and fatigue behavior of extruded ME21 and twin roll cast AZ31 magnesium sheet metals

Dallmeier

Huber

Saage

et al. 2014

Materials Science and Engineering: A

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“…While it is expected that twin density would increase with greater levels of strain, it is possible that deformation has altered the twin boundaries, making it more difficult to distinguish between a normal boundary and a twin boundary. It has also been shown in prior studies that uniaxial tension does not result in substantial twinning in AZ31B sheet material, especially when the grain size is fine ( Ref 21,22). The sheets used for the current work had an average grain size of 12 lm.…”

Section: Resultsmentioning

confidence: 56%

Room Temperature Ductility and Microstructure of Magnesium AZ31B Sheet

Miles

Fullwood

Adams

et al. 2011

J. of Materi Eng and Perform

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Formability of wrought magnesium alloys at room temperature or slightly elevated temperatures is modest, reaching about 20% elongation in a tension test and exhibiting poor resistance to strain localization and failure. The hexagonal close packed structure of Mg has few active slip systems at lower forming temperatures, limiting ductility and reducing applications in auto body structures. Much greater levels of ductility can be reached at higher temperatures (typically >300°C), but this is expensive and inconvenient for a high-volume production environment. Tension testing and biaxial forming of annealed AZ31B magnesium alloy sheets were done at room temperature to various levels of strain. High-resolution electron back scatter diffraction (EBSD) was used to measure twin fraction and dislocation density, in order to find relationships between strain and potential failure locations within the microstructure. Twin fractions were found to have a weak positive correlation to uniaxial and biaxial tensile strain, while dislocation density was found to correlate more strongly with uniaxial tensile strain.

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“…This has been shown in previous work, and is shown in Figure 3 for convenience. [18] After the first roll-bonding cycle, the Mg phase developed a strong basal fiber texture that is typical of rolled Mg. [36][37][38] After the first annealing step, the basal texture in the Mg alloy phase weakened significantly and the basal pole exhibited a split in the TD.…”

Section: Texturementioning

confidence: 99%

“…Another possible explanation for the split observed in this report could be the activation of twinning within the Mg. A few reports of an AZ31B alloy following strain paths where twinning was expected also showed a similar texture to what is reported here. [37,64] Twinning causes large reorientations of the parent grain matrix, 86.3 in the case of extension twins in Mg, and thus large quantities of twinning could possibly account for the extra peaks in the RD. It is possible that twinning occurred during the first two rolling steps and decreased with increasing rolling reduction, as has been often reported.…”

Section: Texture Evolutionmentioning

confidence: 99%

Processing of Dilute Mg–Zn–Mn–Ca Alloy/Nb Multilayers by Accumulative Roll Bonding

et al. 2019

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Recent advancements in the severe plastic deformation process called accumulative roll bonding (ARB) can help to address the long‐standing need for manufacturing lightweight, high‐strength Mg sheet materials. However, the fabrication of Mg alloy‐based laminates via ARB remains a challenge due to the intrinsically poor formability of Mg. Herein, it is shown that Mg‐based composite laminates with refined layers can be fabricated via several room‐temperature ARB cycles with appropriate intermediate annealing and alloy selection. The final laminates made here consist of equal volume fractions of a dilute Mg–Zn–Mn–Ca alloy phase and a pure Nb phase with fine 150 μm layer thicknesses. Deformation texture evolution in both phases within the composite is analyzed via neutron diffraction measurements taken at different stages in the process. The analysis suggests that the annealing step recrystallizes the Mg‐alloy phase. It is also shown that for both phases, the stabilized deformation textures within the composite correspond to the classic stable textures of the individual constituents. Polycrystal texture modeling implies that {10–12} <‐1011> extension twinning developed in the Mg alloy during rolling.

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Forming behavior of magnesium sheet

Cited by 25 publications

References 3 publications

Quasi-static and fatigue behavior of extruded ME21 and twin roll cast AZ31 magnesium sheet metals

Quasi-static and fatigue behavior of extruded ME21 and twin roll cast AZ31 magnesium sheet metals

Room Temperature Ductility and Microstructure of Magnesium AZ31B Sheet

Processing of Dilute Mg–Zn–Mn–Ca Alloy/Nb Multilayers by Accumulative Roll Bonding

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