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Ultrahigh Strength and Exceptional Work Hardening in a Hierarchical-Structured Alloy via Hetero-Interface-Mediated Twinning

2025-07-13Artigo científico Acesso aberto
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dc.contributor.authorYang, Yitong
dc.contributor.authorPang, Jingyu
dc.contributor.authorZhang, Hongwei
dc.contributor.authorShen, Jiajia
dc.contributor.authorXing, Zhenqiang
dc.contributor.authorSun, Yuan
dc.contributor.authorWang, Aimin
dc.contributor.authorOliveira, J. P.
dc.contributor.authorWang, Wei
dc.contributor.authorJiao, Zengbao
dc.contributor.institutionDEMI - Departamento de Engenharia Mecânica e Industrial
dc.contributor.institutionCENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)
dc.contributor.pblWiley-VCH Verlag
dc.date.accessioned2025-09-08T21:50:18Z
dc.date.available2025-09-08T21:50:18Z
dc.date.issued2025-07-13
dc.descriptionFunding Information: Y.Y. and J.P. contributed equally to this work. This work was supported bythe National Natural Science Foundation of China (52171162, 52404370,52271122), the Natural Science Foundation of Liaoning Province (2023-BS-012), the IMR Innovation Fund (2023-PY16), and the Research Grant Council of Hong Kong (15227121, 15202824, and C5002-24Y). J.S. and J.P.O. acknowledge funding by national funds from FCT – Fundação para a Ciência e a Tecnologia, I.P., in the scope of the projects LA/P/0037/2020, UIDP/50025/2020, and UIDB/50025/2020 of the Associate Laboratory In-stitute of Nanostructures, Nanomodelling and Nanofabrication – i3N. Theauthors are indebted to Dr. Ting Xiong for the assistance in analyzing HR-STEM results. Publisher Copyright: © 2025 The Author(s). Advanced Science published by Wiley-VCH GmbH.
dc.description.abstractYield strength and work hardening are two critical mechanical properties of metallic structural materials. However, increasing yield strength through conventional strengthening mechanisms often restricts further dislocation multiplications and interactions, which significantly reduces work hardening and poses a challenge to achieving an optimal balance between these properties in material design. Here, an innovative approach to simultaneously enhance both yield strength and work hardening in a heterostructured, nanoprecipitation-strengthened alloy is reported. This alloy exhibits an exceptional combination of a yield strength exceeding 1.5 GPa and an ultrahigh work hardening rate of 6 GPa, resulting in an extremely high tensile strength of 2.2 GPa and a uniform ductility of 20%. The ultrahigh yield strength primarily stems from nanoprecipitates and ultrafine grains, while the exceptional work hardening mainly originates from hetero-interface-mediated twinning. The hetero-deformation between the coarse-grained and ultrafine-grained regions results in dislocation pile-ups and strain gradients near the interfaces, which provides the ultrahigh stress necessary to activate mechanical twinning, thereby substantially improving the work hardening and plastic deformation stability of the alloy. The hetero-interface architecting strategy can potentially be applied to numerous other alloys, paving the way for designing novel materials with unprecedented mechanical properties for technological applications.en
dc.description.versionpublishersversion
dc.description.versionepub_ahead_of_print
dc.format.extent8
dc.format.extent7245481
dc.identifier.doi10.1002/advs.202509584
dc.identifier.issn2198-3844
dc.identifier.otherPURE: 128839180
dc.identifier.otherPURE UUID: 2d9d33cd-5907-4087-a5ae-0e63afb6f212
dc.identifier.otherScopus: 105010684437
dc.identifier.otherORCID: /0000-0001-6906-1870/work/191452480
dc.identifier.urihttp://hdl.handle.net/10362/187699
dc.identifier.urlhttps://www.scopus.com/pages/publications/105010684437
dc.language.isoeng
dc.peerreviewedyes
dc.relationinfo:eu-repo/grantAgreement/FCT/Concurso para Atribuição do Estatuto e Financiamento de Laboratórios Associados (LA)/LA%2FP%2F0037%2F2020/PT
dc.relationinfo:eu-repo/grantAgreement/FCT/Concurso de avaliação no âmbito do Programa Plurianual de Financiamento de Unidades de I&D (2017%2F2018) - Financiamento Programático/UIDP%2F50025%2F2020/PT
dc.relationinfo:eu-repo/grantAgreement/FCT/Concurso de avaliação no âmbito do Programa Plurianual de Financiamento de Unidades de I&D (2017%2F2018) - Financiamento Base/UIDB%2F50025%2F2020/PT
dc.subjectheterostructure
dc.subjecthigh entropy alloy
dc.subjectmechanical property
dc.subjectwork hardening
dc.subjectMedicine (miscellaneous)
dc.subjectGeneral Chemical Engineering
dc.subjectBiochemistry, Genetics and Molecular Biology (miscellaneous)
dc.subjectGeneral Materials Science
dc.subjectGeneral Engineering
dc.subjectGeneral Physics and Astronomy
dc.titleUltrahigh Strength and Exceptional Work Hardening in a Hierarchical-Structured Alloy via Hetero-Interface-Mediated Twinningen
dc.typejournal article
degois.publication.titleAdvanced Science
dspace.entity.typePublication
oaire.awardNumberLA/P/0037/2020
oaire.awardNumberUIDP/50025/2020
oaire.awardNumberUIDB/50025/2020
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Concurso para Atribuição do Estatuto e Financiamento de Laboratórios Associados (LA)/LA%2FP%2F0037%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Concurso de avaliação no âmbito do Programa Plurianual de Financiamento de Unidades de I&D (2017%2F2018) - Financiamento Programático/UIDP%2F50025%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Concurso de avaliação no âmbito do Programa Plurianual de Financiamento de Unidades de I&D (2017%2F2018) - Financiamento Base/UIDB%2F50025%2F2020/PT
oaire.fundingStreamConcurso para Atribuição do Estatuto e Financiamento de Laboratórios Associados (LA)
oaire.fundingStreamConcurso de avaliação no âmbito do Programa Plurianual de Financiamento de Unidades de I&D (2017/2018) - Financiamento Programático
oaire.fundingStreamConcurso de avaliação no âmbito do Programa Plurianual de Financiamento de Unidades de I&D (2017/2018) - Financiamento Base
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
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relation.isProjectOfPublication.latestForDiscoverycafb0eb5-3bd1-4839-ac3a-57bc84707df7

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