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Laser powder bed fusion of a high-performance high-entropy alloy produced by designed powder blending and tailored post-treatment.

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Title: Laser powder bed fusion of a high-performance high-entropy alloy produced by designed powder blending and tailored post-treatment.
Authors: Cao, Boxuan1 (AUTHOR) caoboxuan@hit.edu.cn, Wang, Shanshan1,2,3 (AUTHOR), Xu, Weiwei1,4 (AUTHOR), Jia, Yunfeng1,2,3 (AUTHOR), Zhang, Weijian1,2,3 (AUTHOR), Chen, Ruiguang5 (AUTHOR), Wang, Yixiang1 (AUTHOR), Shi, Rongpei1 (AUTHOR), Liu, Weihong1 (AUTHOR), Zhao, Yilu1 (AUTHOR), Yu, Suzhu1,2,3 (AUTHOR) szyu@hit.edu.cn, Wei, Jun1,2,3 (AUTHOR) junwei@hit.edu.cn
Source: Journal of Alloys & Compounds. Dec2025, Vol. 1049, pN.PAG-N.PAG. 1p.
Subjects: Tensile strength, Alloys, Solid freeform fabrication, Mechanical behavior of materials, Selective laser melting, Powders, Crystal structure
Abstract: As a revolutionary technology, additive manufacturing offers a promising path for producing components in near-net shape. We demonstrate the feasibility of fabricating high-performance alloy through tailored powder blending and post-treatment using the laser powder bed fusion technique. With the aid of first-principle calculation, we select commercially available Ti6Al4V alloy powder and CoCrFeNi high-entropy alloy powder mixtures as raw materials for additive manufacturing. Appropriate post-treatment helps to mitigate strain-age cracking and heterogeneous grain boundary precipitation, contributing to the formation of high-density coherent L1 2 nanoprecipitates. By leveraging powder blending and post-treatment strategy, we achieved a significantly improved tensile strength (over 1.1 GPa) and sustained work-hardening without sacrificing tensile ductility (over 25 %). In particular, we find that Al and Co additions are critical for the stabilization of the L1 2 structure and suppress the brittle D0 24 -type Ni 3 Ti phase formation. The current work offers a promising outlook for preparing high-performance structural materials through powder blending and tailored post-treatment via additive manufacturing. • First-principle calculation aided raw materials combination designing for laser powder bed fusion. • Suitable post-treatment could mitigate strain-age cracking and heterogeneous grain boundary precipitation. • Appropriate powder blending and post-treatment strategy could significantly improve mechanical properties. • Al and Co additions help to stabilize the L12 structure and suppress the brittle D024-type Ni3Ti phase. [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: 190203543
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Laser powder bed fusion of a high-performance high-entropy alloy produced by designed powder blending and tailored post-treatment.
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  Label: Authors
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  Data: <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+Shanshan%22">Wang, Shanshan</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xu%2C+Weiwei%22">Xu, Weiwei</searchLink><relatesTo>1,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jia%2C+Yunfeng%22">Jia, Yunfeng</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Weijian%22">Zhang, Weijian</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Ruiguang%22">Chen, Ruiguang</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Yixiang%22">Wang, Yixiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shi%2C+Rongpei%22">Shi, Rongpei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Weihong%22">Liu, Weihong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhao%2C+Yilu%22">Zhao, Yilu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yu%2C+Suzhu%22">Yu, Suzhu</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> szyu@hit.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wei%2C+Jun%22">Wei, Jun</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> junwei@hit.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Alloys+%26+Compounds%22">Journal of Alloys & Compounds</searchLink>. Dec2025, Vol. 1049, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Tensile+strength%22">Tensile strength</searchLink><br /><searchLink fieldCode="DE" term="%22Alloys%22">Alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Solid+freeform+fabrication%22">Solid freeform fabrication</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Selective+laser+melting%22">Selective laser melting</searchLink><br /><searchLink fieldCode="DE" term="%22Powders%22">Powders</searchLink><br /><searchLink fieldCode="DE" term="%22Crystal+structure%22">Crystal structure</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: As a revolutionary technology, additive manufacturing offers a promising path for producing components in near-net shape. We demonstrate the feasibility of fabricating high-performance alloy through tailored powder blending and post-treatment using the laser powder bed fusion technique. With the aid of first-principle calculation, we select commercially available Ti6Al4V alloy powder and CoCrFeNi high-entropy alloy powder mixtures as raw materials for additive manufacturing. Appropriate post-treatment helps to mitigate strain-age cracking and heterogeneous grain boundary precipitation, contributing to the formation of high-density coherent L1 2 nanoprecipitates. By leveraging powder blending and post-treatment strategy, we achieved a significantly improved tensile strength (over 1.1 GPa) and sustained work-hardening without sacrificing tensile ductility (over 25 %). In particular, we find that Al and Co additions are critical for the stabilization of the L1 2 structure and suppress the brittle D0 24 -type Ni 3 Ti phase formation. The current work offers a promising outlook for preparing high-performance structural materials through powder blending and tailored post-treatment via additive manufacturing. • First-principle calculation aided raw materials combination designing for laser powder bed fusion. • Suitable post-treatment could mitigate strain-age cracking and heterogeneous grain boundary precipitation. • Appropriate powder blending and post-treatment strategy could significantly improve mechanical properties. • Al and Co additions help to stabilize the L12 structure and suppress the brittle D024-type Ni3Ti phase. [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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=190203543
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.jallcom.2025.185335
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Tensile strength
        Type: general
      – SubjectFull: Alloys
        Type: general
      – SubjectFull: Solid freeform fabrication
        Type: general
      – SubjectFull: Mechanical behavior of materials
        Type: general
      – SubjectFull: Selective laser melting
        Type: general
      – SubjectFull: Powders
        Type: general
      – SubjectFull: Crystal structure
        Type: general
    Titles:
      – TitleFull: Laser powder bed fusion of a high-performance high-entropy alloy produced by designed powder blending and tailored post-treatment.
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            NameFull: Cao, Boxuan
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            – D: 15
              M: 12
              Text: Dec2025
              Type: published
              Y: 2025
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            – Type: issn-print
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              Value: 1049
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            – TitleFull: Journal of Alloys & Compounds
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