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dc.contributor.authorTsuru, T.en
dc.contributor.authorSuzudo, T.en
dc.contributor.alternative都留, 智仁ja
dc.date.accessioned2019-02-01T05:24:28Z-
dc.date.available2019-02-01T05:24:28Z-
dc.date.issued2018-08-
dc.identifier.issn2352-1791-
dc.identifier.urihttp://hdl.handle.net/2433/236170-
dc.description.abstractChanges in mechanical properties due to transmutation products (Re and Os) in W alloys is a central issue for plasma-facing materials in fusion reactors. We conducted density functional theory calculations to investigate the effect of Re, Os, and other 5d solutes on core structure and motion of screw dislocations associated with plastic deformation. Ir, Pt, Au, and Hg solutes show strong attractive interactions with screw dislocations, causing solution strengthening by the pinning mechanism. On the other hand, Hf, Ta, and Re cause softening by facilitating dislocation motion around solutes. This prediction corresponds well with the experimental observation of softening behavior in W-Re alloys.en
dc.format.mimetypeapplication/pdf-
dc.language.isoeng-
dc.publisherElsevier BVen
dc.rights© 2018 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/BY-NC-ND/4.0/).en
dc.subjectSolution softeningen
dc.subjectTransmutation productsen
dc.subjectDislocationen
dc.subjectFirst-principlesen
dc.subjectTungsten alloysen
dc.titleFirst-principles calculations of interaction between solutes and dislocations in tungstenen
dc.typejournal article-
dc.type.niitypeJournal Article-
dc.identifier.jtitleNuclear Materials and Energyen
dc.identifier.volume16-
dc.identifier.spage221-
dc.identifier.epage225-
dc.relation.doi10.1016/j.nme.2018.07.007-
dc.textversionpublisher-
dc.addressNuclear Science and Engineering Center, Japan Atomic Energy Agency・Elements Strategy Initiative for Structural Materials (ESISM), Kyoto Universityen
dc.addressCenter for Computational Science and e-Systems, Japan Atomic Energy Agencyen
dcterms.accessRightsopen access-
datacite.awardNumber16K06714-
datacite.awardNumber15K06672-
jpcoar.funderName日本学術振興会ja
jpcoar.funderName日本学術振興会ja
jpcoar.funderName.alternativeJapan Society for the Promotion of Science (JSPS)en
jpcoar.funderName.alternativeJapan Society for the Promotion of Science (JSPS)en
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