Effect of processing route on texture and cold formability of AZ31 Mg alloy sheets processed by ECAP

Suh, Joung Sik; Victoria-Hernández, José; Letzig, Dietmar; Golle, Roland; Volk, Wolfram

doi:10.1016/j.msea.2016.05.027

Cited by 92 publications

(31 citation statements)

References 41 publications

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“…Hence, it can be conducted repeatedly and accumulated a lager strain. A lot of works have been carried out about the effect of ECAP on Mg alloy [42][43][44][45][46][47][48][49]. The results reveled that both the strength and ductility of Mg alloy can be greatly improved after the application of ECAP process owing to obvious grain refinement.…”

Section: Equal Channel Angular Pressingmentioning

confidence: 99%

Recent Research on the Deformation Behavior of Particle Reinforced Magnesium Matrix Composite: A Review

Deng

Wang

Nie

et al. 2019

Acta Metall. Sin. (Engl. Lett.)

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Particle reinforced magnesium matrix composite (PMMC) possesses the merits of high specific strength, high specific modulus, better dimensional stability, good wear resistance and lower production cost, which is thought as a promising material in the field of aerospace, automobile, electronic communication, etc. To eliminate the casting defect, the PMMC is usually experienced hot deformation process. The present paper mainly focuses on the deformation behavior of PMMCs. First, the development of PMMCs based on particle size is introduced. Then, the hot deformation technology and deformation mechanism of PMMCs at elevated temperature are given and analyzed, respectively. After reviewing the dynamic recrystallization and texture of PMMCs, its future development is suggested based on the current research progress.

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Section: Equal Channel Angular Pressingmentioning

confidence: 99%

Recent Research on the Deformation Behavior of Particle Reinforced Magnesium Matrix Composite: A Review

Deng

Wang

Nie

et al. 2019

Acta Metall. Sin. (Engl. Lett.)

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“…In this regard, severe plastic deformation techniques are effective to enhance the ductility, strength of Mg alloys (Agnew et al, 2004;Biswas et al, 2010Biswas et al, , 2013. For instance, it has been shown that alternative processing routes are effective for the enhancement of the microstructure, i.e., grain size and texture, resulting in a decrease anisotropy of Mg alloys (Biswas and Suwas, 2012;Han et al, 2016;Suh et al, 2016). The second approach is the design of the microstructure based on changes in the chemical composition.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the Mechanical Properties and Forming Behavior of Two Texture-Weakened Mg-Sheet Alloys Produced by Twin Roll Casting

Victoria-Hernández

Klaumünzer

et al. 2019

Front. Mater.

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The influence of rolling and annealing on the resulting mechanical properties and forming behavior of Mg-Zn-RE and Mg-Zn-Ca alloys produced via twin roll casting is investigated. After hot rolling followed by an annealing treatment, both alloys develop a fine-grained microstructure with average grain sizes <10 µm. A distinctive development of a texture with a pronounced split of the basal poles in the transverse direction, so called TDsplit, is observed in both alloys during the annealing. Due to the fine microstructure and weak texture, which enhances the activation of basal slip, both alloys show large ductility with fracture strain higher than 30%. However, due to the TD-split texture, a high asymmetry of the yield stress is observed, where the yield stress in rolling direction is significantly higher than the yield stress along 45 • and the transverse direction. Both alloys show high stretch formability at room temperature with Erichsen index around 7. Despite a low planar anisotropy and high stretch formability, the Mg-Zn-RE alloy shows undesirable earing behavior, while the Mg-Zn-Ca alloy fractures during warm deep drawing. Moreover, the deep drawing operation using the as-rolled sheet of Mg-Zn-RE alloy can be successfully done. It is observed that the earing behavior can be effectively reduced by deviating from the TD-split texture. In this regard, cold rolling was explored to reduce the anisotropy of the ductile and formable alloy.

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“…In shear, textures develop that contain particular components of slow rotation rates . The shear textures of ultrafine‐grained materials have been reported in numerous studies on a variety of materials processed by ECAP and HPT, as well as high‐pressure double torsion (HPDT) . It has been shown that strain path changes, alloying, and grain size can have an impact on the distribution of shear textures …”

Section: Introductionmentioning

confidence: 99%

Effect of Grain Shape on Texture Formation during Severe Plastic Deformation of Pure Copper

2017

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In this study, the authors use a combination of electron backscattered diffraction and polycrystal plasticity modeling to study the effect of grain shape on texture development in high pressure torsion and high pressure double torsion in high purity Cu. With varying applied pressures and after a large amount of strain corresponding to two to four turns, the average aspect ratios of the grains has changed from being elongated under higher pressures to nearly equiaxed for lower pressures, while keeping the average grain size similar among all samples analyzed. Polycrystal modeling is used to help isolating the deformation effect from the grain shape effect. The authors show that grains with elongated shapes form shear textures with a predominant C component, whereas those with largely equiaxed grains possess conventional shear textures.

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Effect of processing route on texture and cold formability of AZ31 Mg alloy sheets processed by ECAP

Cited by 92 publications

References 41 publications

Recent Research on the Deformation Behavior of Particle Reinforced Magnesium Matrix Composite: A Review

Recent Research on the Deformation Behavior of Particle Reinforced Magnesium Matrix Composite: A Review

Comparison of the Mechanical Properties and Forming Behavior of Two Texture-Weakened Mg-Sheet Alloys Produced by Twin Roll Casting

Effect of Grain Shape on Texture Formation during Severe Plastic Deformation of Pure Copper

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