Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Moon, Joonoh | - |
dc.contributor.author | Park, Seong-Jun | - |
dc.contributor.author | Kim, Kyeong-Won | - |
dc.contributor.author | Hong, Hyun-Uk | - |
dc.contributor.author | Han, Heung Nam | - |
dc.contributor.author | Lee, Bong Ho | - |
dc.date.accessioned | 2023-01-06T19:40:11Z | - |
dc.date.available | 2023-01-06T19:40:11Z | - |
dc.date.created | 2022-10-28 | - |
dc.date.issued | 2023-02 | - |
dc.identifier.issn | 1611-3683 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/17326 | - |
dc.description.abstract | Fe-30Mn-10.5Al-1.1C alloys with different Mo and Ni contents are prepared to investigate the phase transformation behavior and mechanical properties of austenitic lightweight steels. Solution-treated samples have microstructures consisting of an austenite matrix and ordered kappa-carbides, and the size of the kappa-carbides decreases with the addition of Mo or Ni. In addition, the ordered body-centered cubic (BCC) phases of B2 and DO3 also form when 3wt%Mo and 3wt%Ni are complexly added, resulting in a large decrease of the austenite grain size. Nanoindentation experiments show that the intrinsic strength of the austenite matrix changes depending on the precipitation behavior of the kappa-carbide; i.e., the addition of 3wt%Mo or 3wt%Ni decreases the intrinsic strength of the austenite by suppressing kappa-carbide precipitation, while complex additions of 3wt%Mo and 3wt%Ni increase them again. The results of tensile tests show that the alloy containing both 3wt%Mo and 3wt%Ni exhibits the highest yield (1102 MPa) and tensile strength (1155 MPa) with large tensile ductility (33%) due to the effects of grain refinement of the austenite grains and formation of secondary hard phases of DO3 and B2, as well as kappa-carbides. Finally, the changes in the precipitation behavior of the kappa-carbide are investigated via transmission electron microscopy and atom probe tomography analyses. © 2022 Wiley-VCH GmbH. | - |
dc.language | English | - |
dc.publisher | Wiley-VCH Verlag | - |
dc.title | Synergetic Effects of Complex Additions of Mo and Ni on the Phase Transformation Behavior and Mechanical Properties of Austenitic Lightweight Steels | - |
dc.type | Article | - |
dc.identifier.doi | 10.1002/srin.202200251 | - |
dc.identifier.wosid | 000868739100001 | - |
dc.identifier.scopusid | 2-s2.0-85139978539 | - |
dc.identifier.bibliographicCitation | Steel Research International, v.94, no.2 | - |
dc.description.isOpenAccess | FALSE | - |
dc.subject.keywordAuthor | B2 | - |
dc.subject.keywordAuthor | DO3 | - |
dc.subject.keywordAuthor | intrinsic strength | - |
dc.subject.keywordAuthor | lightweight steels | - |
dc.subject.keywordAuthor | kappa-carbide | - |
dc.subject.keywordPlus | KAPPA-CARBIDE | - |
dc.subject.keywordPlus | MICROSTRUCTURE EVOLUTION | - |
dc.subject.keywordPlus | AL | - |
dc.subject.keywordPlus | PRECIPITATION | - |
dc.subject.keywordPlus | STRENGTH | - |
dc.subject.keywordPlus | SI | - |
dc.citation.number | 2 | - |
dc.citation.title | Steel Research International | - |
dc.citation.volume | 94 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Metallurgy & Metallurgical Engineering | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.type.docType | Article | - |
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