The recrystallization and texture of magnesium–zinc–cerium alloys

Mackenzie, L.W.F.; Pekguleryuz, Mihriban

doi:10.1016/j.scriptamat.2008.05.021

Cited by 336 publications

(166 citation statements)

References 8 publications

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“…This unique TD spread texture has been observed in a variety of magnesium-Zn-RE alloys including those containing Ce, Gd, and Nd. [4,[10][11][12][13] Similar textures have been observed in alloys which contain Ca rather than RE. [10] In the as-rolled condition (hot rolling) such materials often show a spread in basal poles toward the TD, even if a split toward the RD is retained.…”

Section: Introductionsupporting

confidence: 67%

“…[10] In the as-rolled condition (hot rolling) such materials often show a spread in basal poles toward the TD, even if a split toward the RD is retained. [4,12,13] The pronounced spread and split toward the TD emerges during recrystallization. These alloys have attracted considerable interest because the textures produced give greatly improved formability over conventional (non-RE) Mg alloy and binary Mg-RE sheet.…”

Section: Introductionmentioning

confidence: 99%

“…[15] The importance of recrystallization (after warm rolling) in producing the characteristic TD spread in Mg-Zn-(Ca,RE) rolled sheet has been noted in several studies. [4,10,12,13] It has been observed that during recovery and recrystallization, TD-oriented grains appear more resistant to recrystallization, whereas those with basal poles spread (or split) toward the rolling direction (RD) are consumed, leading to dominance of the TD spread grains. The TD spread grains are seen to emerge from shear bands in the material.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Influence of Strain Path on Rare Earth Recrystallization Textures in a Magnesium-Zinc-Rare Earth Alloy

Griffiths

Davis²,

Robson

2017

Metall Mater Trans A

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In this study, the effect of strain path on texture evolution during cold rolled and annealing of hot rolled Mg-Zn-Rare-Earth (RE) alloy (ZEK100) sheet has been investigated. Strain path during cold rolling has been varied by changing rolling direction with respect to the original hot rolling (HR) direction of the sheet. Cold rolling either parallel or perpendicular to the HR direction leads to spread and split of basal poles in the transverse direction (TD) during annealing, characteristic of Mg-Zn-RE alloys. However, when the sheet is continuously rotated between cold rolling passes, this texture spread is not produced. It is demonstrated that a change in dislocation activity, as predicted by crystal plasticity modeling, cannot explain the unusual textures developed in Mg-Zn-RE alloys. Instead, the role of strain path in determining shear band evolution is considered to be critical. When shear bands are suppressed by continuously rotating the specimen, the distinct Zn-RE texture is not produced. Furthermore, it is demonstrated the dominance of the TD spread grains emerges gradually during recrystallization, leading to the final observed texture.

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Section: Introductionsupporting

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Influence of Strain Path on Rare Earth Recrystallization Textures in a Magnesium-Zinc-Rare Earth Alloy

Griffiths

Davis²,

Robson

2017

Metall Mater Trans A

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“…1a and b shows the textures generated in an Mg-Zn binary alloy sheet and the same sheet with a small RE addition (0?052 at.-%Ce). 40 The alloy without RE exhibits a strong basal texture with a slight split towards the rolling direction (RD). The RE containing alloy shows a weaker texture, with a pronounced split in the basal poles towards the transverse direction (TD).…”

Section: Texture Modificationmentioning

confidence: 99%

“…47 It has been widely demonstrated that the RE texture emerges during recrystallisation, whether static or dynamic. 40,48,49 RE additions have been shown to retard recovery and dynamic recrystallisation in magnesium, leading to a higher stored energy in the deformed microstructure with a greater spread of orientations from which recrystallised grains form. 49,50 The change in texture during recrystallisation therefore has its origins in a change in the deformation structure when RE elements are present.…”

Section: Texture Modificationmentioning

confidence: 99%

Critical Assessment 9: Wrought magnesium alloys

Robson¹

2015

Materials Science and Technology

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This assessment is focussed on wrought magnesium alloys for lightweight applications, particularly in the transport sector. The challenges to their wider use are summarised, including poor low temperature formability, corrosion issues, dissimilar metal joining, and limited precipitation strengthening. The fundamental origins of these challenges, and current research to address them, are highlighted. Key developments such as the use of dilute rare earth additions to manipulate texture for improved formability are discussed. Opportunities to exploit the unique properties of wrought magnesium alloys where further research is required are identified.

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