{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1362262944580786048.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1073/pnas.0611097104"}},{"identifier":{"@type":"URI","@value":"https://pnas.org/doi/pdf/10.1073/pnas.0611097104"}}],"dc:title":[{"@value":"Interfacial plasticity governs strain rate sensitivity and ductility in nanostructured metals"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>Nano-twinned copper exhibits an unusual combination of ultrahigh strength and high ductility, along with increased strain-rate sensitivity. We develop a mechanistic framework for predicting the rate sensitivity and elucidating the origin of ductility in terms of the interactions of dislocations with interfaces. Using atomistic reaction pathway calculations, we show that slip transfer reactions mediated by twin boundary are the rate-controlling mechanisms of plastic flow. We attribute the relatively high ductility of nano-twinned copper to the hardening of twin boundaries as they gradually lose coherency during plastic deformation. These findings provide insights into the possible means of optimizing strength and ductility through interfacial engineering.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380857595838681220","@type":"Researcher","foaf:name":[{"@value":"Ting Zhu"}],"jpcoar:affiliationName":[{"@value":"Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332;"}]},{"@id":"https://cir.nii.ac.jp/crid/1380857595838681216","@type":"Researcher","foaf:name":[{"@value":"Ju Li"}],"jpcoar:affiliationName":[{"@value":"Department of Materials Science and Engineering, Ohio State University, Columbus, OH 43210; and"}]},{"@id":"https://cir.nii.ac.jp/crid/1380857595838681217","@type":"Researcher","foaf:name":[{"@value":"Amit Samanta"}],"jpcoar:affiliationName":[{"@value":"Department of Materials Science and Engineering, Ohio State University, Columbus, OH 43210; and"}]},{"@id":"https://cir.nii.ac.jp/crid/1380857595838681219","@type":"Researcher","foaf:name":[{"@value":"Hyoung Gyu Kim"}],"jpcoar:affiliationName":[{"@value":"Department of Materials Science and Engineering, Ohio State University, Columbus, OH 43210; and"}]},{"@id":"https://cir.nii.ac.jp/crid/1380857595838681218","@type":"Researcher","foaf:name":[{"@value":"Subra Suresh"}],"jpcoar:affiliationName":[{"@value":"Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00278424"},{"@type":"EISSN","@value":"10916490"}],"prism:publicationName":[{"@value":"Proceedings of the National Academy of Sciences"}],"dc:publisher":[{"@value":"Proceedings of the National Academy of Sciences"}],"prism:publicationDate":"2007-02-27","prism:volume":"104","prism:number":"9","prism:startingPage":"3031","prism:endingPage":"3036"},"reviewed":"false","url":[{"@id":"https://pnas.org/doi/pdf/10.1073/pnas.0611097104"}],"createdAt":"2007-02-22","modifiedAt":"2022-04-12","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050584642174118400","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Temperature and loading-rate dependent critical stress intensity factor of dislocation nucleation from crack tip: Atomistic insights into cracking at slant twin boundaries in nano-twinned TiAl alloys"}]},{"@id":"https://cir.nii.ac.jp/crid/1360002217813594368","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Roles of grain boundaries in improving fracture toughness of ultrafine-grained 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