Improved strength of a medium -Mn steel by V addition without sacrificing ductility
DC Field | Value | Language |
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dc.contributor.author | Park, Tak Min | - |
dc.contributor.author | Jeong, Mun Sik | - |
dc.contributor.author | Jung, Chanwon | - |
dc.contributor.author | Choi, Won Seok | - |
dc.contributor.author | Choi, Pyuck-Pa | - |
dc.contributor.author | Han, Jeongho | - |
dc.date.accessioned | 2021-07-30T04:50:38Z | - |
dc.date.available | 2021-07-30T04:50:38Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2021-01 | - |
dc.identifier.issn | 0921-5093 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/1627 | - |
dc.description.abstract | ere, we investigated the effects of adding a micro-alloying element to medium-Mn steel and explored why a resulting sample containing precipitates exhibited higher strength than one without precipitates, without sacrificing ductility. The model alloys comprised steels of Fe-8Mn-0.2C-3Al-(0, 0.2)V (wt.%); they were cold-rolled and intercritically annealed at identical temperatures between 670 and 730 degrees C for 30 min. These annealed steels exhibited two-phase microstructures consisting of ferrite (alpha) and retained austenite (gamma(R)), with a nanoscale globular morphology. Smaller grain sizes and lower volume fractions of gamma(R) were observed in the V-containing specimen, relative to the V-free specimen, owing to the formation of VC precipitates. The latter were mostly formed in the alpha phase, rather than in the gamma(R) phase. These VC precipitates meant that the V-containing steel showed a lower C concentration in gamma(R) and a higher C concentration in alpha than the V-free steel. We propose that such phase compositions enhanced the strain hardening rate during the later stage of mechanical loading due to more active twinning-induced plasticity and dynamic strain aging. These effects resulted in the observed higher tensile strength in the V-containing steel, without sacrificing ductility. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | Improved strength of a medium -Mn steel by V addition without sacrificing ductility | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Han, Jeongho | - |
dc.identifier.doi | 10.1016/j.msea.2020.140681 | - |
dc.identifier.scopusid | 2-s2.0-85097722999 | - |
dc.identifier.wosid | 000612578800001 | - |
dc.identifier.bibliographicCitation | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.802, pp.1 - 13 | - |
dc.relation.isPartOf | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | - |
dc.citation.title | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | - |
dc.citation.volume | 802 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 13 | - |
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.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Metallurgy & Metallurgical Engineering | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.subject.keywordPlus | STACKING-FAULT ENERGY | - |
dc.subject.keywordPlus | MECHANICAL-PROPERTIES | - |
dc.subject.keywordPlus | TENSILE PROPERTIES | - |
dc.subject.keywordPlus | RETAINED AUSTENITE | - |
dc.subject.keywordPlus | GRAIN-STRUCTURE | - |
dc.subject.keywordPlus | PLASTICITY | - |
dc.subject.keywordPlus | STRAIN | - |
dc.subject.keywordPlus | TRANSFORMATION | - |
dc.subject.keywordPlus | MICROSTRUCTURE | - |
dc.subject.keywordPlus | MARTENSITE | - |
dc.subject.keywordAuthor | Medium-Mn steel | - |
dc.subject.keywordAuthor | Twinning-induced plasticity | - |
dc.subject.keywordAuthor | Transformation-induced plasticity | - |
dc.subject.keywordAuthor | Precipitation hardening | - |
dc.subject.keywordAuthor | Dynamic strain aging | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0921509320317445?via%3Dihub | - |
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