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Offsetting strength-ductility tradeoff in Mg-Sn-Zn-Zr alloy by a novel differential-thermal ECAP process.

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Title: Offsetting strength-ductility tradeoff in Mg-Sn-Zn-Zr alloy by a novel differential-thermal ECAP process.
Authors: Zhou, Tianshui1,2 (AUTHOR), Guo, Feifei1,2 (AUTHOR), Zhang, Quanfa1,2 (AUTHOR), Liu, Dexue1,2 (AUTHOR) dxliu@lut.cn
Source: Materials Letters. Dec2021, Vol. 305, pN.PAG-N.PAG. 1p.
Subjects: Tensile strength, Alloys, Grain refinement, Magnesium alloys, Metalwork
Abstract: • A novel T6-DTECAP process was developed. • The T6-DTECAPed Mg alloys showed high UTS of ~323 MPa and excellent El. of ~28.7%. • The deformation mechanisms were mainly the activation of twinning and non-basal slip. • The good performance was associated with grain refinement, second phase and texture. Equal-channel angular pressing (ECAP) technique is a promising method to enhance the properties of Mg alloys. Herein, a novel differential-thermal ECAP process (DTECAP) with pre-aging treatment (T6) was developed to simultaneously improve strength and ductility of Mg-Sn-Zn-Zr (TZK) alloys. After T6-DTECAP, the TZK alloy exhibited high ultimate tensile strength (UTS) of ~323 MPa and excellent elongation (El.) of ~28.7%, showing superior balance of strength and ductility. Examination microstructures of TZK alloys revealed that the excellent comprehensive properties were mainly associated with the activation of {10–12} tension twin variants and non-basal slips. Moreover, the grain refinement, fine second phases, and transition of strong ED texture to fiber (10–10) < 11–20 > texture along TD were also beneficial for the enhanced properties. This work aims to provide a novel insight for the development of high-performance Mg alloys using T6-DTECAP processing. [ABSTRACT FROM AUTHOR]
Copyright of Materials Letters 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.)
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  Data: Offsetting strength-ductility tradeoff in Mg-Sn-Zn-Zr alloy by a novel differential-thermal ECAP process.
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Materials+Letters%22&quot;&gt;Materials Letters&lt;/searchLink&gt;. Dec2021, Vol. 305, pN.PAG-N.PAG. 1p.
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  Label: Abstract
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  Data: • A novel T6-DTECAP process was developed. • The T6-DTECAPed Mg alloys showed high UTS of ~323 MPa and excellent El. of ~28.7%. • The deformation mechanisms were mainly the activation of twinning and non-basal slip. • The good performance was associated with grain refinement, second phase and texture. Equal-channel angular pressing (ECAP) technique is a promising method to enhance the properties of Mg alloys. Herein, a novel differential-thermal ECAP process (DTECAP) with pre-aging treatment (T6) was developed to simultaneously improve strength and ductility of Mg-Sn-Zn-Zr (TZK) alloys. After T6-DTECAP, the TZK alloy exhibited high ultimate tensile strength (UTS) of ~323 MPa and excellent elongation (El.) of ~28.7%, showing superior balance of strength and ductility. Examination microstructures of TZK alloys revealed that the excellent comprehensive properties were mainly associated with the activation of {10–12} tension twin variants and non-basal slips. Moreover, the grain refinement, fine second phases, and transition of strong ED texture to fiber (10–10) &lt; 11–20 &gt; texture along TD were also beneficial for the enhanced properties. This work aims to provide a novel insight for the development of high-performance Mg alloys using T6-DTECAP processing. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: &lt;i&gt;Copyright of Materials Letters is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder&#39;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.&lt;/i&gt; (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.matlet.2021.130764
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Tensile strength
        Type: general
      – SubjectFull: Alloys
        Type: general
      – SubjectFull: Grain refinement
        Type: general
      – SubjectFull: Magnesium alloys
        Type: general
      – SubjectFull: Metalwork
        Type: general
    Titles:
      – TitleFull: Offsetting strength-ductility tradeoff in Mg-Sn-Zn-Zr alloy by a novel differential-thermal ECAP process.
        Type: main
  BibRelationships:
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      – PersonEntity:
          Name:
            NameFull: Zhou, Tianshui
      – PersonEntity:
          Name:
            NameFull: Guo, Feifei
      – PersonEntity:
          Name:
            NameFull: Zhang, Quanfa
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          Name:
            NameFull: Liu, Dexue
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          Dates:
            – D: 15
              M: 12
              Text: Dec2021
              Type: published
              Y: 2021
          Identifiers:
            – Type: issn-print
              Value: 0167577X
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            – Type: volume
              Value: 305
          Titles:
            – TitleFull: Materials Letters
              Type: main
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