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Cited 4 time in webofscience Cited 4 time in scopus
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dc.contributor.authorGu, Gang Hee-
dc.contributor.authorHeo, Yoon-Uk-
dc.contributor.authorKwon, Hyeonseok-
dc.contributor.authorAhn, Soung Yeoul-
dc.contributor.authorSon, Sujung-
dc.contributor.authorAsghari-Rad, Peyman-
dc.contributor.authorKim, Hyoung Seop-
dc.date.accessioned2023-02-02T00:50:19Z-
dc.date.available2023-02-02T00:50:19Z-
dc.date.created2023-01-20-
dc.date.issued2023-03-
dc.identifier.issn1359-6462-
dc.identifier.urihttps://oasis.postech.ac.kr/handle/2014.oak/115009-
dc.description.abstract© 2022 Acta Materialia Inc.Materials manufactured through conventional powder metallurgy (PM) techniques generally exhibit inferior tensile properties due to structural defects. Nevertheless, a recently proposed cold-consolidation technique using powder high-pressure torsion represents well-manufactured structures with ultra-high tensile properties in the absence of cracks or pores. This novel PM-based technique is utilized in the present investigation to fabricate a multi-material Inconel 718/CoCrFeMnNi/Inconel 718 layered structure. By a combination of uttermost high densification, ultra-fine-grained microstructure, and hetero-deformation induced strengthening effect, the present cold-consolidated multi-material exhibits tensile properties with yield strength of 1255.4 MPa, uniform elongation of 13.7%, and total elongation of 25.0%, overcoming monolithic Inconel 718 and CoCrFeMnNi systems. These findings shed light on the capability of the cold-consolidation technique to manufacture multi-layered and gradient multi-functional structures with excellent mechanical response under tensile stress.-
dc.languageEnglish-
dc.publisherPergamon Press Ltd.-
dc.relation.isPartOfScripta Materialia-
dc.titleSynergy of tensile strength-ductility in IN718/CoCrFeMnNi/IN718 multi-material processed by powder high-pressure torsion and annealing-
dc.typeArticle-
dc.identifier.doi10.1016/j.scriptamat.2022.115167-
dc.type.rimsART-
dc.identifier.bibliographicCitationScripta Materialia, v.225, pp.115167-
dc.identifier.wosid000902233800002-
dc.citation.startPage115167-
dc.citation.titleScripta Materialia-
dc.citation.volume225-
dc.contributor.affiliatedAuthorHeo, Yoon-Uk-
dc.contributor.affiliatedAuthorKim, Hyoung Seop-
dc.identifier.scopusid2-s2.0-85141928802-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.isOpenAccessN-
dc.type.docTypeArticle-
dc.subject.keywordPlusHIGH-ENTROPY ALLOY-
dc.subject.keywordPlusINCONEL 718-
dc.subject.keywordPlusMECHANICAL-BEHAVIOR-
dc.subject.keywordPlusDEFORMATION-BEHAVIOR-
dc.subject.keywordPlusHEAT-TREATMENT-
dc.subject.keywordPlusMICROSTRUCTURE-
dc.subject.keywordPlusDISLOCATIONS-
dc.subject.keywordPlusTEMPERATURE-
dc.subject.keywordPlusFORMABILITY-
dc.subject.keywordPlusMETALLURGY-
dc.subject.keywordAuthorCold-consolidation-
dc.subject.keywordAuthorHigh-entropy alloy-
dc.subject.keywordAuthorMechanical properties-
dc.subject.keywordAuthorMulti-materials-
dc.subject.keywordAuthorPowder metallurgy-
dc.relation.journalWebOfScienceCategoryNanoscience & Nanotechnology-
dc.relation.journalWebOfScienceCategoryMaterials Science, Multidisciplinary-
dc.relation.journalWebOfScienceCategoryMetallurgy & Metallurgical Engineering-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaScience & Technology - Other Topics-
dc.relation.journalResearchAreaMaterials Science-
dc.relation.journalResearchAreaMetallurgy & Metallurgical Engineering-

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