Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Moon, Joonoh | ko |
dc.contributor.author | Park, Seong-Jun | ko |
dc.contributor.author | Jang, Jae Hoon | ko |
dc.contributor.author | Lee, Tae-Ho | ko |
dc.contributor.author | Lee, Chang-Hoon | ko |
dc.contributor.author | Hong, Hyun-Uk | ko |
dc.contributor.author | Han, Heung Nam | ko |
dc.contributor.author | Lee, Jaeeun | ko |
dc.contributor.author | Lee, Bong Ho | ko |
dc.contributor.author | Lee, Changhee | ko |
dc.date.accessioned | 2019-06-11T08:21:50Z | - |
dc.date.available | 2019-06-11T08:21:50Z | - |
dc.date.created | 2019-06-11 | - |
dc.date.issued | 2018-04 | - |
dc.identifier.citation | Acta Materialia, v.147, pp.226 - 235 | - |
dc.identifier.issn | 1359-6454 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/9909 | - |
dc.description.abstract | A series of Fe-30 wt%Mn-10.5 wt%Al-1.1 wt%C steels with Mo addition from 0 to 5 wt% were prepared to investigate the effect of Mo on the microstructure and tensile deformation behavior of austenitic lightweight steel. When the Mo content was below 4 wt%, the microstructure of solution-treated samples consisted of austenite and kappa-carbide, while Mo-enriched M6C and M23C6 carbides were additionally precipitated in samples containing Mo more than 4 wt% during a solution treatment at 1050 degrees C. These carbides inhibited austenite grain growth during the solution treatment, resulting in significant grain refinement in the samples containing more that 4 wt% of Mo. Tensile test results showed that the yield strength gradually decreased with an increase in the Mo content up to 3 wt% due to the suppression of kappa-carbide precipitation, whereas it significantly increased when the Mo content exceeded 4 wt% due to grain refinement and precipitation strengthening caused by Mo-enriched carbides. During the tensile deformation, the strain hardening rates of all alloys increased and then the deformation mode subsequently changed with an increase in the Mo content from shearband-induced plasticity (SIP) to microband-induced plasticity (MBIP). Finally, the change in the kappa-carbide precipitation behavior upon the addition of Mo and its effect on the deformation behavior were carefully analyzed and discussed through nanoindentation experiments, first-principles calculations and atom probe tomography analyses. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.publisher | Elsevier BV | - |
dc.title | Investigations of the microstructure evolution and tensile deformation behavior of austenitic Fe-Mn-Al-C lightweight steels and the effect of Mo addition | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.actamat.2018.01.051 | - |
dc.identifier.wosid | 000428098400023 | - |
dc.identifier.scopusid | 2-s2.0-85041397465 | - |
dc.type.local | Article(Overseas) | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.contributor.nonIdAuthor | Moon, Joonoh | - |
dc.contributor.nonIdAuthor | Park, Seong-Jun | - |
dc.contributor.nonIdAuthor | Jang, Jae Hoon | - |
dc.contributor.nonIdAuthor | Lee, Tae-Ho | - |
dc.contributor.nonIdAuthor | Lee, Chang-Hoon | - |
dc.contributor.nonIdAuthor | Hong, Hyun-Uk | - |
dc.contributor.nonIdAuthor | Han, Heung Nam | - |
dc.contributor.nonIdAuthor | Lee, Jaeeun | - |
dc.contributor.nonIdAuthor | Lee, Changhee | - |
dc.identifier.citationVolume | 147 | - |
dc.identifier.citationStartPage | 226 | - |
dc.identifier.citationEndPage | 235 | - |
dc.identifier.citationTitle | Acta Materialia | - |
dc.type.journalArticle | Article | - |
dc.description.isOpenAccess | N | - |
dc.subject.keywordAuthor | Lightweight steel | - |
dc.subject.keywordAuthor | Precipitation | - |
dc.subject.keywordAuthor | Atom Probe Tomography (APT) | - |
dc.subject.keywordAuthor | First-principles calculations | - |
dc.subject.keywordAuthor | Nanoindentation | - |
dc.subject.keywordAuthor | Deformation microstructure | - |
dc.subject.keywordPlus | KAPPA-CARBIDE PRECIPITATION | - |
dc.subject.keywordPlus | HIGH-STRENGTH | - |
dc.subject.keywordPlus | LOW-DENSITY | - |
dc.subject.keywordPlus | ORIENTATION RELATIONSHIPS | - |
dc.subject.keywordPlus | M6C CARBIDE | - |
dc.subject.keywordPlus | ALLOY | - |
dc.subject.keywordPlus | PARTICLE | - |
dc.subject.keywordPlus | SI | - |
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