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Effect of initial orientation on bending behavior in rolled AZ31 magnesium alloy.

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Title: Effect of initial orientation on bending behavior in rolled AZ31 magnesium alloy.
Authors: Sun, Longhui1,2 (AUTHOR), Zhang, Hua1,2 (AUTHOR) zhanghua@ytu.edu.cn, Jin, Hongchen1,2 (AUTHOR), Li, Wenpeng1,2 (AUTHOR), Wang, Lifei3 (AUTHOR), Lu, Liwei4 (AUTHOR)
Source: Journal of Alloys & Compounds. Aug2025, Vol. 1038, pN.PAG-N.PAG. 1p.
Subjects: Grain orientation (Materials), Anisotropy, Bending strength, Twinning (Crystallography), Deformations (Mechanics), Magnesium alloys, Ductility
Abstract: This study investigated the influence of initial grain orientation on the room-temperature bending behavior of rolled AZ31 magnesium alloy. The results indicated that the rolling direction (RD) specimen exhibited superior bending strength (with yield strength of 149 MPa vs. 120 MPa, and peak stress of 413 MPa vs. 358 MPa, respectively) and bending ductility (with a fracture bending angle of 75° vs. 131°, corresponding to punch displacements of 14.8 mm vs. 6.4 mm) compared to the normal direction (ND) specimen. This macroscopic performance difference originated from the anisotropy of microscopic deformation mechanisms, particularly the spatial distribution of dominant {10−12} tensile twinning activation regions. The primary twinning zone in the RD specimen was located in the compression region on the inner side of the bent specimen, whereas in the ND specimen, it was concentrated in the tension region on the outer side. The interaction between the initial c-axis preferred orientation of the grains and the local stress state determined twinning activation, as well as the synergy and competition of dislocation slip, thereby governing the significant bending formability anisotropy. • RD specimen exhibits much superior bending performance than ND specimen. • Improved tension-compression asymmetry contributes to enhanced bending formability. • Initial grain orientation dictates basal slip and {10−12} twinning activation, thereby affecting bending anisotropy. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 187413500
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
  Group: Ti
  Data: Effect of initial orientation on bending behavior in rolled AZ31 magnesium alloy.
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  Data: <searchLink fieldCode="AR" term="%22Sun%2C+Longhui%22">Sun, Longhui</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Hua%22">Zhang, Hua</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> zhanghua@ytu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Jin%2C+Hongchen%22">Jin, Hongchen</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Wenpeng%22">Li, Wenpeng</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Lifei%22">Wang, Lifei</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lu%2C+Liwei%22">Lu, Liwei</searchLink><relatesTo>4</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Alloys+%26+Compounds%22">Journal of Alloys & Compounds</searchLink>. Aug2025, Vol. 1038, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Grain+orientation+%28Materials%29%22">Grain orientation (Materials)</searchLink><br /><searchLink fieldCode="DE" term="%22Anisotropy%22">Anisotropy</searchLink><br /><searchLink fieldCode="DE" term="%22Bending+strength%22">Bending strength</searchLink><br /><searchLink fieldCode="DE" term="%22Twinning+%28Crystallography%29%22">Twinning (Crystallography)</searchLink><br /><searchLink fieldCode="DE" term="%22Deformations+%28Mechanics%29%22">Deformations (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Magnesium+alloys%22">Magnesium alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Ductility%22">Ductility</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study investigated the influence of initial grain orientation on the room-temperature bending behavior of rolled AZ31 magnesium alloy. The results indicated that the rolling direction (RD) specimen exhibited superior bending strength (with yield strength of 149 MPa vs. 120 MPa, and peak stress of 413 MPa vs. 358 MPa, respectively) and bending ductility (with a fracture bending angle of 75° vs. 131°, corresponding to punch displacements of 14.8 mm vs. 6.4 mm) compared to the normal direction (ND) specimen. This macroscopic performance difference originated from the anisotropy of microscopic deformation mechanisms, particularly the spatial distribution of dominant {10−12} tensile twinning activation regions. The primary twinning zone in the RD specimen was located in the compression region on the inner side of the bent specimen, whereas in the ND specimen, it was concentrated in the tension region on the outer side. The interaction between the initial c-axis preferred orientation of the grains and the local stress state determined twinning activation, as well as the synergy and competition of dislocation slip, thereby governing the significant bending formability anisotropy. • RD specimen exhibits much superior bending performance than ND specimen. • Improved tension-compression asymmetry contributes to enhanced bending formability. • Initial grain orientation dictates basal slip and {10−12} twinning activation, thereby affecting bending anisotropy. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.jallcom.2025.182695
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Grain orientation (Materials)
        Type: general
      – SubjectFull: Anisotropy
        Type: general
      – SubjectFull: Bending strength
        Type: general
      – SubjectFull: Twinning (Crystallography)
        Type: general
      – SubjectFull: Deformations (Mechanics)
        Type: general
      – SubjectFull: Magnesium alloys
        Type: general
      – SubjectFull: Ductility
        Type: general
    Titles:
      – TitleFull: Effect of initial orientation on bending behavior in rolled AZ31 magnesium alloy.
        Type: main
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          Name:
            NameFull: Sun, Longhui
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            NameFull: Zhang, Hua
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            NameFull: Jin, Hongchen
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            NameFull: Li, Wenpeng
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            NameFull: Wang, Lifei
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            – D: 20
              M: 08
              Text: Aug2025
              Type: published
              Y: 2025
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              Value: 1038
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            – TitleFull: Journal of Alloys & Compounds
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