Effects of microstructure and pipe forming strain on yield strength before and after spiral pipe forming of API X70 and X80 linepipe steel sheets
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 손석수 | - |
dc.date.accessioned | 2022-04-11T08:45:20Z | - |
dc.date.available | 2022-04-11T08:45:20Z | - |
dc.date.created | 2022-04-08 | - |
dc.date.issued | 2013-06 | - |
dc.identifier.issn | 0921-5093 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/140001 | - |
dc.description.abstract | API X70 and X80 linepipe steel sheets were shaped in the form of pipe with different strains (thickness/diameter ratio) by spiral pipe forming. Tension specimens taken from steel sheets or pipes at an interval of 2.5 mm were tested, and their yielding behavior, yield strength, and yield ratio before and after forming were analyzed. In the pipes, the continuous yielding and low yield ratios were shown in the inner side, whereas the discontinuous yielding and high yield ratios were shown in the outer side. This was because the Bauschinger effect and the strain hardening effect were mainly dominant in the inner and outer sides, respectively. The overall yield strength after spiral piping was defined by the competing effect of the strain hardening and the Bauschinger effect. The competing effects depended on the microstructure and the pipe forming strains. The low-temperature transformation microstructures were preferred for achieving the larger increase of overall yield strength after pipe forming. For a specific microstructure an optimization of the yield strength can also be achieved by controlling the pipe forming strain in order to maximize the strain hardening effect and to minimize the Bauschinger effect. (C) 2013 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | Effects of microstructure and pipe forming strain on yield strength before and after spiral pipe forming of API X70 and X80 linepipe steel sheets | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | 손석수 | - |
dc.identifier.doi | 10.1016/j.msea.2013.02.050 | - |
dc.identifier.bibliographicCitation | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.573, pp.18 - 26 | - |
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 | 573 | - |
dc.citation.startPage | 18 | - |
dc.citation.endPage | 26 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Bainite | - |
dc.subject.keywordAuthor | Electron microscopy | - |
dc.subject.keywordAuthor | Hardening | - |
dc.subject.keywordAuthor | Martensite | - |
dc.subject.keywordAuthor | Sheet forming | - |
dc.subject.keywordAuthor | Thermomechanical processing | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.