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Defeating creep embrittlement under high-stress levels through heterogeneous grain architecture in a L12-strengthened multicomponent alloy.

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Title: Defeating creep embrittlement under high-stress levels through heterogeneous grain architecture in a L12-strengthened multicomponent alloy.
Authors: Jing, Lijun1 (AUTHOR), Cao, Boxuan1 (AUTHOR) caoboxuan@hit.edu.cn, Wang, Yixiang1 (AUTHOR), Wei, Jun1,2,3 (AUTHOR), Yang, Tao4 (AUTHOR), Zhao, Yilu1 (AUTHOR) zhaoyilu@hit.edu.cn
Source: Materials Science & Engineering: A. Mar2024, Vol. 895, pN.PAG-N.PAG. 1p.
Subjects: Creep (Materials), Strains & stresses (Mechanics), Alloys, Grain, Embrittlement, Crystal grain boundaries
Abstract: L1 2 -strengthened multicomponent alloys exhibit excellent mechanical properties over a wide temperature range. However, defeating the intermediate-temperature creep embrittlement is challenging. Herein, we demonstrated that the creep damage tolerance can be enhanced in a heterostructure consisting of high-density low-angle boundaries and disconnected high-angle grain boundaries. Our results show that the rearrangements of the preexisting dislocations coupled with the interactions between precipitates and various faults can be simultaneously activated in the heterostructured alloy, which helps to accommodate the cumulative strain for a prolonged creep life. This work provides a feasible route to optimize the creep rupture resistance under high-stress levels among precipitation-hardened polycrystalline alloy systems. [ABSTRACT FROM AUTHOR]
Copyright of Materials Science & Engineering: A 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
FullText Text:
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Header DbId: egs
DbLabel: Engineering Source
An: 175848773
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
  Group: Ti
  Data: Defeating creep embrittlement under high-stress levels through heterogeneous grain architecture in a L12-strengthened multicomponent alloy.
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  Data: <searchLink fieldCode="AR" term="%22Jing%2C+Lijun%22">Jing, Lijun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cao%2C+Boxuan%22">Cao, Boxuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> caoboxuan@hit.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Yixiang%22">Wang, Yixiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wei%2C+Jun%22">Wei, Jun</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Tao%22">Yang, Tao</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhao%2C+Yilu%22">Zhao, Yilu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zhaoyilu@hit.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Materials+Science+%26+Engineering%3A+A%22">Materials Science & Engineering: A</searchLink>. Mar2024, Vol. 895, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Creep+%28Materials%29%22">Creep (Materials)</searchLink><br /><searchLink fieldCode="DE" term="%22Strains+%26+stresses+%28Mechanics%29%22">Strains & stresses (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Alloys%22">Alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Grain%22">Grain</searchLink><br /><searchLink fieldCode="DE" term="%22Embrittlement%22">Embrittlement</searchLink><br /><searchLink fieldCode="DE" term="%22Crystal+grain+boundaries%22">Crystal grain boundaries</searchLink>
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  Label: Abstract
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  Data: L1 2 -strengthened multicomponent alloys exhibit excellent mechanical properties over a wide temperature range. However, defeating the intermediate-temperature creep embrittlement is challenging. Herein, we demonstrated that the creep damage tolerance can be enhanced in a heterostructure consisting of high-density low-angle boundaries and disconnected high-angle grain boundaries. Our results show that the rearrangements of the preexisting dislocations coupled with the interactions between precipitates and various faults can be simultaneously activated in the heterostructured alloy, which helps to accommodate the cumulative strain for a prolonged creep life. This work provides a feasible route to optimize the creep rupture resistance under high-stress levels among precipitation-hardened polycrystalline alloy systems. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Materials Science & Engineering: A 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:
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      – Type: doi
        Value: 10.1016/j.msea.2024.146223
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      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
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      – SubjectFull: Creep (Materials)
        Type: general
      – SubjectFull: Strains & stresses (Mechanics)
        Type: general
      – SubjectFull: Alloys
        Type: general
      – SubjectFull: Grain
        Type: general
      – SubjectFull: Embrittlement
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      – SubjectFull: Crystal grain boundaries
        Type: general
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      – TitleFull: Defeating creep embrittlement under high-stress levels through heterogeneous grain architecture in a L12-strengthened multicomponent alloy.
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            NameFull: Jing, Lijun
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            NameFull: Cao, Boxuan
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            NameFull: Wang, Yixiang
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            NameFull: Wei, Jun
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            NameFull: Yang, Tao
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              M: 03
              Text: Mar2024
              Type: published
              Y: 2024
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