Enhanced strength-ductility balance of the (CoCrFeNiMn)95.2Al3.2Ti1.6 high-entropy alloy by co-precipitation of the B2 and sigma phases
DC Field | Value | Language |
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dc.contributor.author | Yang, Guanghui | - |
dc.contributor.author | Kang, Jiyeon | - |
dc.contributor.author | Kim, Jin-Kyung | - |
dc.contributor.author | Park, Joo Hyun | - |
dc.date.accessioned | 2023-07-24T09:23:04Z | - |
dc.date.available | 2023-07-24T09:23:04Z | - |
dc.date.created | 2023-07-20 | - |
dc.date.issued | 2023-05 | - |
dc.identifier.issn | 0921-5093 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/187310 | - |
dc.description.abstract | The present work investigated the effect of the co-precipitation of the B2 and σ phases on the mechanical properties of the (CoCrFeNiMn)95.2Al3.2Ti1.6 high entropy alloy subjected to two-step annealing. The single-step annealed sample at 900 °C only showed B2 precipitates. Further annealing at 650 and 750 °C led to the co-precipitation of σ and B2 particles. The sizes and fractions of σ and B2 particles increased with increasing annealing temperature. The sample subjected to the second annealing at 750 °C, with large sizes and fractions of co-precipitated σ and B2 particles, exhibited high strength with maintaining moderate ductility (YS: 561 MPa, UTS: 1005 MPa, TE: 26%). The superior mechanical properties of the sample subjected to the second annealing at 750 °C could be owing to the co-precipitation hardening, back stress strengthening, joint activation of dislocation plasticity and deformation twinning. The present work offers a novel microstructure design to optimize the strength–ductility balance of high-entropy alloys via the co-precipitation of σ and B2 particles. © 2023 Elsevier B.V. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | Elsevier BV | - |
dc.title | Enhanced strength-ductility balance of the (CoCrFeNiMn)95.2Al3.2Ti1.6 high-entropy alloy by co-precipitation of the B2 and sigma phases | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Park, Joo Hyun | - |
dc.identifier.doi | 10.1016/j.msea.2023.145039 | - |
dc.identifier.scopusid | 2-s2.0-85152439674 | - |
dc.identifier.bibliographicCitation | Materials Science and Engineering: A, v.873, pp.1 - 8 | - |
dc.relation.isPartOf | Materials Science and Engineering: A | - |
dc.citation.title | Materials Science and Engineering: A | - |
dc.citation.volume | 873 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 8 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | B2 phase | - |
dc.subject.keywordAuthor | Co-precipitation | - |
dc.subject.keywordAuthor | High entropy alloy | - |
dc.subject.keywordAuthor | Mechanical properties | - |
dc.subject.keywordAuthor | Sigma phase | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S092150932300463X | - |
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