DC Field | Value | Language |
---|---|---|
dc.contributor.author | Hyunbin Nam | - |
dc.contributor.author | Seonghoon Yoo | - |
dc.contributor.author | LEE, BYEONG JOO | - |
dc.contributor.author | Sangwoo Song | - |
dc.contributor.author | Youngsang Na | - |
dc.contributor.author | Namhyun Kang | - |
dc.date.accessioned | 2023-03-03T06:40:33Z | - |
dc.date.available | 2023-03-03T06:40:33Z | - |
dc.date.created | 2023-03-02 | - |
dc.date.issued | 2022-07 | - |
dc.identifier.issn | 2238-7854 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/116658 | - |
dc.description.abstract | This study investigated the gas tungsten arc (GTA) weldability of cold-rolled CoCrFeMnNi high-entropy alloys (HEAs) using Cu-coated HEA filler, specifically through the application of various post–weld heat treatment (PWHT) temperatures. The GTA weldability of cold-rolled HEA was evaluated by applying the optimum condition of full penetration, and the effect of PWHT was investigated in the temperature range of 973–1173 K. No macro-defects were detected in the weld metal (WM) to which the Cu coated HEA filler was applied. All the PWHT-applied specimens, including the as-welded specimens, were composed of the FCC phase. The Cu component was solid-solutionized over the entire area of the WM and did not form a precipitate. The tensile properties of the as-welded specimens deteriorated in the presence of CrMn oxides. As the PWHT temperature increased, the grain size in the base metal (BM) increased and inclusions in the WM were re-dissolved. Furthermore, by increasing the PWHT temperature, the hardness of the BM decreased significantly by grain growth, and the WM softened slightly owing to the re-dissolution of inclusions. Therefore, the WMs improved the tensile strength and elongation with increasing PWHT temperature. The application of PWHT significantly improved the weldability of the Cu coated CoCrFeMnNi welds. | - |
dc.language | English | - |
dc.publisher | Elsevier Editora Ltda | - |
dc.relation.isPartOf | Journal of Materials Research and Technology | - |
dc.title | Enhancement of tensile properties of gas tungsten arc welds using Cu-coated CoCrFeMnNi filler and posteweld heat treatment | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.jmrt.2022.07.023 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Journal of Materials Research and Technology, v.19, pp.4857 - 4866 | - |
dc.identifier.wosid | 000840542500002 | - |
dc.citation.endPage | 4866 | - |
dc.citation.startPage | 4857 | - |
dc.citation.title | Journal of Materials Research and Technology | - |
dc.citation.volume | 19 | - |
dc.contributor.affiliatedAuthor | LEE, BYEONG JOO | - |
dc.identifier.scopusid | 2-s2.0-85139309820 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | HIGH-ENTROPY ALLOYS | - |
dc.subject.keywordPlus | MECHANICAL-PROPERTIES | - |
dc.subject.keywordPlus | WELDABILITY | - |
dc.subject.keywordPlus | CAST | - |
dc.subject.keywordAuthor | High -entropy alloys | - |
dc.subject.keywordAuthor | Cu component | - |
dc.subject.keywordAuthor | Post -weld heat treatment | - |
dc.subject.keywordAuthor | GTA weldability | - |
dc.subject.keywordAuthor | Microstructure | - |
dc.subject.keywordAuthor | Mechanical properties | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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