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Termination of negative strain-rate sensitivity by nanotwin formation in twip steel micropillars

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dc.contributor.departmentDepartment of Mechanical Engineering
dc.contributor.kuauthorCanadinç, Demircan
dc.contributor.schoolcollegeinstituteCollege of Engineering
dc.date.accessioned2024-11-09T23:00:00Z
dc.date.issued2020
dc.description.abstractStrain-rate sensitivity (SRS) of high-Mn austenitic steels at the micrometric scale was investigated. Compressive-deformation response of TWIP steel micropillars demonstrated negative SRS between 1x10(-4)and 1 s(-1)strain rates, which was terminated by the formation of nanotwins that significantly enhance the work-hardening capacity at 1 s(-1).
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.issue11
dc.description.openaccessNO
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.sponsorshiphe author thanks Ms. Nahide Tüten, Dr. M. BarışYağcıand Dr. Amir Motallebzadeh fortheir help with the experiments. The FIB and TEM were conducted at Bilkent UniversityUNAM facilities, and the rest of the experiments were carried out at the facilities of Koc Uni-versity Surface Science and Technology Center (KUYTAM).Figure 3.(a) TEM image evidencing nanotwin formation in the micropillar deformed at 1 s−1strain rate, (b) close-up of the nanotwins detected in (a), and (c) the corresponding selected-area diffraction (SAD) pattern.PHILOSOPHICAL MAGAZINE LETTERS511
dc.description.volume100
dc.identifier.doi10.1080/09500839.2020.1805522
dc.identifier.eissn1362-3036
dc.identifier.issn0950-0839
dc.identifier.quartileQ3
dc.identifier.scopus2-s2.0-85089176761
dc.identifier.urihttps://doi.org/10.1080/09500839.2020.1805522
dc.identifier.urihttps://hdl.handle.net/20.500.14288/7970
dc.identifier.wos557608500001
dc.keywordsHigh-Mn austenitic steel
dc.keywordsTwip steel
dc.keywordsNanotwin
dc.keywordsMicropillar
dc.keywordsStrain rate sensitivity deformation-behavior
dc.keywordsCompression
dc.keywordsAlloy
dc.keywordsSize
dc.language.isoeng
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofPhilosophical Magazine Letters
dc.subjectMaterials Science, Multidisciplinary
dc.subjectMetallurgy and metallurgical engineering
dc.subjectPhysics, applied
dc.subjectPhysics, Condensed matter
dc.titleTermination of negative strain-rate sensitivity by nanotwin formation in twip steel micropillars
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorCanadinç, Demircan
local.publication.orgunit1College of Engineering
local.publication.orgunit2Department of Mechanical Engineering
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relation.isOrgUnitOfPublication.latestForDiscoveryba2836f3-206d-4724-918c-f598f0086a36
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relation.isParentOrgUnitOfPublication.latestForDiscovery8e756b23-2d4a-4ce8-b1b3-62c794a8c164

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