Ultra-strong and strain-hardenable ultrafine-grained medium-entropy alloy via enhanced grain-boundary strengthening
DC Field | Value | Language |
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dc.contributor.author | Park, Jeong Min | - |
dc.contributor.author | Yang, Dae Cheol | - |
dc.contributor.author | Kim, Han-Jin | - |
dc.contributor.author | Kim, Dong Geun | - |
dc.contributor.author | Lee, Sunghak | - |
dc.contributor.author | Kim, Hyoung Seop | - |
dc.contributor.author | Sohn, Seok Su | - |
dc.date.accessioned | 2021-11-21T09:40:46Z | - |
dc.date.available | 2021-11-21T09:40:46Z | - |
dc.date.created | 2021-08-30 | - |
dc.date.issued | 2021-04-20 | - |
dc.identifier.issn | 2166-3831 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/128219 | - |
dc.description.abstract | An equiatomic VCoNi medium-entropy alloy possesses high sensitivity to grain-boundary strengthening, achieved by severe lattice distortions. Its ultrafine-grain structure enables 1.5 Gigapascal yield strength even for the fully recrystallized alloy with a single face-centered cubic structure. The high density of grain boundaries also generates high back stresses via piling up of massive dislocations, and the low cross-slip probabilities produce not only robust dislocation-mediated plasticity but also high back stress contribution to flow stress, which affords high strain-hardening capability to ultrafine-grain alloys, with 1.7 Gigapascal ultimate tensile strength with remarkable ductility. Our approach provides a new method for developing ultrastrong metallic materials. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | TAYLOR & FRANCIS INC | - |
dc.title | Ultra-strong and strain-hardenable ultrafine-grained medium-entropy alloy via enhanced grain-boundary strengthening | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Sohn, Seok Su | - |
dc.identifier.doi | 10.1080/21663831.2021.1913768 | - |
dc.identifier.scopusid | 2-s2.0-85104736938 | - |
dc.identifier.wosid | 000641308400001 | - |
dc.identifier.bibliographicCitation | MATERIALS RESEARCH LETTERS, v.9, no.7, pp.315 - 321 | - |
dc.relation.isPartOf | MATERIALS RESEARCH LETTERS | - |
dc.citation.title | MATERIALS RESEARCH LETTERS | - |
dc.citation.volume | 9 | - |
dc.citation.number | 7 | - |
dc.citation.startPage | 315 | - |
dc.citation.endPage | 321 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordAuthor | Medium-entropy alloy | - |
dc.subject.keywordAuthor | severe plastic deformation | - |
dc.subject.keywordAuthor | ultrafine grain structure | - |
dc.subject.keywordAuthor | severe lattice distortion | - |
dc.subject.keywordAuthor | grain boundary strengthening | - |
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