DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yim, D. | - |
dc.contributor.author | Kim, W. | - |
dc.contributor.author | Praveen, S. | - |
dc.contributor.author | Jang, M.J. | - |
dc.contributor.author | Bae, J.W. | - |
dc.contributor.author | Moon, J. | - |
dc.contributor.author | Kim, E. | - |
dc.contributor.author | Hong, S.-J. | - |
dc.contributor.author | Kim, H.S. | - |
dc.date.accessioned | 2018-06-15T05:23:23Z | - |
dc.date.available | 2018-06-15T05:23:23Z | - |
dc.date.created | 2017-12-21 | - |
dc.date.issued | 2017-12 | - |
dc.identifier.issn | 0921-5093 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/50422 | - |
dc.description.abstract | In this study, mechanically alloyed CoCrFeMnNi high-entropy alloy (HEA) powders were compacted using static and shock wave compaction methods followed by pressureless sintering. The microstructural evolution and the mechanical properties were analyzed using optical microscopy, scanning electron microscopy, finite element method simulations, and tensile tests. The alloy consists of an FCC phase with a minor amount of ZrO2 in the as-milled and sintered condition. The presence of ZrO2 is due to the contamination during milling, and it led to the formation of composite microstructure after sintering. The static compaction of the alloyed powders resulted in an increase in compaction density (~ 85 to 88%) with the increasing pressure (1?3 GPa), and the shock wave compaction of the alloyed powders resulted in the high relative density (~ 95%) with relatively fine and isolated pores. After sintering, almost full densification (~ 99.5%) with smaller grain size and better mechanical properties was achieved in the shock wave compacted specimens as compared to the sintering of static compacted specimens. The sintered shock wave compacted specimen exhibited high yield strength of ~ 630 MPa and uniform strain distributions. ? 2017 Elsevier B.V. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.relation.isPartOf | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | - |
dc.subject | Chromium alloys | - |
dc.subject | Cobalt alloys | - |
dc.subject | Compaction | - |
dc.subject | Entropy | - |
dc.subject | Finite element method | - |
dc.subject | Iron alloys | - |
dc.subject | Manganese alloys | - |
dc.subject | Mechanical properties | - |
dc.subject | Nickel alloys | - |
dc.subject | Powder metallurgy | - |
dc.subject | Powders | - |
dc.subject | Scanning electron microscopy | - |
dc.subject | Shock waves | - |
dc.subject | Strain | - |
dc.subject | Tensile testing | - |
dc.subject | Compaction densities | - |
dc.subject | Composite microstructures | - |
dc.subject | Finite element method simulation | - |
dc.subject | High entropy alloys | - |
dc.subject | High relative densities | - |
dc.subject | Mechanically alloyed | - |
dc.subject | Pressure-less sintering | - |
dc.subject | Strain distributions | - |
dc.subject | Sintering | - |
dc.title | Shock wave compaction and sintering of mechanically alloyed CoCrFeMnNi high-entropy alloy powders | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.msea.2017.09.132 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.708, pp.291 - 300 | - |
dc.identifier.wosid | 000415770100030 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.endPage | 300 | - |
dc.citation.startPage | 291 | - |
dc.citation.title | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | - |
dc.citation.volume | 708 | - |
dc.contributor.affiliatedAuthor | Kim, H.S. | - |
dc.identifier.scopusid | 2-s2.0-85030759846 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 4 | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | SOLID-SOLUTION | - |
dc.subject.keywordPlus | CRYOGENIC APPLICATIONS | - |
dc.subject.keywordPlus | MULTICOMPONENT ALLOYS | - |
dc.subject.keywordPlus | DYNAMIC COMPACTION | - |
dc.subject.keywordPlus | CRYSTAL-STRUCTURES | - |
dc.subject.keywordPlus | METALLURGY STEELS | - |
dc.subject.keywordPlus | GRAIN-GROWTH | - |
dc.subject.keywordPlus | CONSOLIDATION | - |
dc.subject.keywordPlus | MICROSTRUCTURE | - |
dc.subject.keywordPlus | DEFORMATION | - |
dc.subject.keywordAuthor | High-entropy alloy | - |
dc.subject.keywordAuthor | Powder metallurgy | - |
dc.subject.keywordAuthor | Compaction | - |
dc.subject.keywordAuthor | Sintering | - |
dc.subject.keywordAuthor | Shock wave compaction | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Metallurgy & Metallurgical Engineering | - |
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