DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kwon, Hyeonseok | - |
dc.contributor.author | Sathiyamoorthi, Praveen | - |
dc.contributor.author | Karthik, Gangaraju Manogna | - |
dc.contributor.author | Asghari-Rad, Peyman | - |
dc.contributor.author | Zargaran, Alireza | - |
dc.contributor.author | Do, Hyeon-Seok | - |
dc.contributor.author | Lee, Byeong-Joo | - |
dc.contributor.author | Kato, Hidemi | - |
dc.contributor.author | Kim, Hyoung Seop | - |
dc.date.accessioned | 2022-01-05T04:40:29Z | - |
dc.date.available | 2022-01-05T04:40:29Z | - |
dc.date.created | 2021-11-01 | - |
dc.date.issued | 2021-11 | - |
dc.identifier.issn | 1359-6462 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/109071 | - |
dc.description.abstract | A novel non-equiatomic FeCoNiAlTiMo ferrous medium-entropy alloy (MEA) with ultra-high tensile strengths at 298 and 77 K is presented in this work. By subjecting the MEA to hot rolling without further heat treatment, a quasi-dual-phase microstructure consisting of retained face-centered cubic (FCC) and thermal body-centered cubic martensite (BCC) phases with a very high density of dislocations and precipitates of Mo-rich mu phase was created. The high dislocation density significantly accelerated deformation-induced martensitic transformation from the remaining metastable FCC to BCC and successfully increased strain hardening ability. The strain hardening ability was even higher at 77 K due to decreasing FCC phase stability at lower temperatures. The increased strain hardening ability led to an excellent balance of strength and ductility, with ultimate tensile strength/uniform elongation of similar to 1.5 GPa/similar to 15% at 298 K and similar to 2.3 GPa/similar to 11% at 77 K. (C) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.relation.isPartOf | SCRIPTA MATERIALIA | - |
dc.title | 2.3 GPa cryogenic strength through thermal-induced and deformation-induced body-centered cubic martensite in a novel ferrous medium entropy alloy | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.scriptamat.2021.114157 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | SCRIPTA MATERIALIA, v.204 | - |
dc.identifier.wosid | 000690441400011 | - |
dc.citation.title | SCRIPTA MATERIALIA | - |
dc.citation.volume | 204 | - |
dc.contributor.affiliatedAuthor | Kwon, Hyeonseok | - |
dc.contributor.affiliatedAuthor | Sathiyamoorthi, Praveen | - |
dc.contributor.affiliatedAuthor | Karthik, Gangaraju Manogna | - |
dc.contributor.affiliatedAuthor | Asghari-Rad, Peyman | - |
dc.contributor.affiliatedAuthor | Zargaran, Alireza | - |
dc.contributor.affiliatedAuthor | Do, Hyeon-Seok | - |
dc.contributor.affiliatedAuthor | Lee, Byeong-Joo | - |
dc.contributor.affiliatedAuthor | Kim, Hyoung Seop | - |
dc.identifier.scopusid | 2-s2.0-85111173537 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | PHASE-TRANSFORMATION | - |
dc.subject.keywordPlus | LATH MARTENSITE | - |
dc.subject.keywordPlus | MECHANISMS | - |
dc.subject.keywordPlus | STEEL | - |
dc.subject.keywordPlus | BLOCK | - |
dc.subject.keywordAuthor | Dislocation structure | - |
dc.subject.keywordAuthor | Plastic deformation | - |
dc.subject.keywordAuthor | Work hardening | - |
dc.subject.keywordAuthor | Martensitic phase transformation | - |
dc.subject.keywordAuthor | Maraging medium-entropy alloys | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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