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Strengthening 316L austenitic steel through a bimodal approach with ODS steel.

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Title: Strengthening 316L austenitic steel through a bimodal approach with ODS steel.
Authors: Hadraba, Hynek1 (AUTHOR) hadraba@ipm.cz, Stratil, Ludek1 (AUTHOR), Siska, Filip1 (AUTHOR), Chlup, Zdenek1 (AUTHOR), Bertolla, Luca1 (AUTHOR), Siska Viragova, Eliska2,3 (AUTHOR), Vilemova, Monika4 (AUTHOR)
Source: Journal of Materials Science. Oct2025, Vol. 60 Issue 38, p17971-17988. 18p.
Subjects: Ductility, Austenitic stainless steel, Ultimate strength, Steel, Particle size distribution, Grain size, Mechanical behavior of materials
Abstract: Achieving a balance between strength and ductility has long been a challenge in materials science. Strategies such as bimodal grain size distribution have been proposed to overcome this limitation by combining coarse grains for ductility with fine grains for strength. This study presents a novel approach to preparing bimodal 316L austenitic stainless steel, integrating fine-grained oxide dispersion-strengthened (ODS) steel as the strengthening matrix with coarse-grained austenite steel. The fine-grained ODS phase, prepared by mechanical alloying, provides uniform microstructural properties and controls the overall alloy structure. The tensile properties of the bimodal structures were analysed, revealing that a volume fraction of 70–80% fine grains achieves optimal strength–ductility synergy, deviating from the conventional Hall–Petch relationship. This innovative use of ODS steel demonstrates its potential to enhance mechanical performance and scalability, offering a versatile tool for tailoring advanced austenitic steels. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials Science is the property of Springer Nature 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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DbLabel: Engineering Source
An: 188313750
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Strengthening 316L austenitic steel through a bimodal approach with ODS steel.
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Science%22">Journal of Materials Science</searchLink>. Oct2025, Vol. 60 Issue 38, p17971-17988. 18p.
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  Data: <searchLink fieldCode="DE" term="%22Ductility%22">Ductility</searchLink><br /><searchLink fieldCode="DE" term="%22Austenitic+stainless+steel%22">Austenitic stainless steel</searchLink><br /><searchLink fieldCode="DE" term="%22Ultimate+strength%22">Ultimate strength</searchLink><br /><searchLink fieldCode="DE" term="%22Steel%22">Steel</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+size+distribution%22">Particle size distribution</searchLink><br /><searchLink fieldCode="DE" term="%22Grain+size%22">Grain size</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink>
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  Data: Achieving a balance between strength and ductility has long been a challenge in materials science. Strategies such as bimodal grain size distribution have been proposed to overcome this limitation by combining coarse grains for ductility with fine grains for strength. This study presents a novel approach to preparing bimodal 316L austenitic stainless steel, integrating fine-grained oxide dispersion-strengthened (ODS) steel as the strengthening matrix with coarse-grained austenite steel. The fine-grained ODS phase, prepared by mechanical alloying, provides uniform microstructural properties and controls the overall alloy structure. The tensile properties of the bimodal structures were analysed, revealing that a volume fraction of 70–80% fine grains achieves optimal strength–ductility synergy, deviating from the conventional Hall–Petch relationship. This innovative use of ODS steel demonstrates its potential to enhance mechanical performance and scalability, offering a versatile tool for tailoring advanced austenitic steels. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Journal of Materials Science is the property of Springer Nature 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: 10.1007/s10853-025-11444-x
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      – Code: eng
        Text: English
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        PageCount: 18
        StartPage: 17971
    Subjects:
      – SubjectFull: Ductility
        Type: general
      – SubjectFull: Austenitic stainless steel
        Type: general
      – SubjectFull: Ultimate strength
        Type: general
      – SubjectFull: Steel
        Type: general
      – SubjectFull: Particle size distribution
        Type: general
      – SubjectFull: Grain size
        Type: general
      – SubjectFull: Mechanical behavior of materials
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      – TitleFull: Strengthening 316L austenitic steel through a bimodal approach with ODS steel.
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            NameFull: Hadraba, Hynek
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            NameFull: Stratil, Ludek
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            NameFull: Siska, Filip
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            NameFull: Bertolla, Luca
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            – D: 08
              M: 10
              Text: Oct2025
              Type: published
              Y: 2025
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              Value: 60
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              Value: 38
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