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DC Field | Value | Language |
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dc.citation.startPage | 140880 | - |
dc.citation.title | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | - |
dc.citation.volume | 807 | - |
dc.contributor.author | Lee, Jungsub | - |
dc.contributor.author | Ha, Hyunjong | - |
dc.contributor.author | Seol, Jae Bok | - |
dc.contributor.author | Kim, Jung Gi | - |
dc.contributor.author | Seo, Eun Hyeok | - |
dc.contributor.author | Moon, Seung Ki | - |
dc.contributor.author | Jung, Im Doo | - |
dc.contributor.author | Sung, Hyokyung | - |
dc.date.accessioned | 2023-12-21T16:10:57Z | - |
dc.date.available | 2023-12-21T16:10:57Z | - |
dc.date.created | 2021-03-25 | - |
dc.date.issued | 2021-03 | - |
dc.description.abstract | Despite recent progress in achieving high mechanical properties of 3D printed metal products, the low productivity still remains a major limitation for their cost-effective feasibility in practical applications. To achieve high-speed printing with affordable mechanical properties, we increased the scanning speed of selective laser melting process with Ti-6Al-4V up to 1800 mm/s and applied a hot isostatic pressing (HIP) process to compensate for the porosity. In these high-speed printed specimens, the HIP process led to a microstructural change from alpha'-lath martensite to a Widmanstatten a-lamellar structure, which deteriorated their tensile properties due to the segregation of beta-stabilizing atoms and caused inter-lamellar fracture. The deterioration phenomenon of high-speed printed Ti-6Al-4V specimens after the HIP process was found to be critically affected by the surface roughness of as-built state, which can be efficiently controlled with a build angle set-up. | - |
dc.identifier.bibliographicCitation | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.807, pp.140880 | - |
dc.identifier.doi | 10.1016/j.msea.2021.140880 | - |
dc.identifier.issn | 0921-5093 | - |
dc.identifier.scopusid | 2-s2.0-85100854238 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/50561 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0921509321001490?via%3Dihub | - |
dc.identifier.wosid | 000621956900001 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | Reverse effect of hot isostatic pressing on high-speed selective laser melted Ti-6Al-4V alloy | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics; Materials Science; Metallurgy & Metallurgical Engineering | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Selective laser melting | - |
dc.subject.keywordAuthor | Ti-6Al-4V | - |
dc.subject.keywordAuthor | Scanning speed | - |
dc.subject.keywordAuthor | Laser power | - |
dc.subject.keywordAuthor | Tensile properties | - |
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