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Sintering of nano-sized WC-Co powders produced by a gas reduction-carburization process
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Gwan-Hyoung | - |
dc.contributor.author | Kang, Shinhoo | - |
dc.date.accessioned | 2024-05-14T07:43:19Z | - |
dc.date.available | 2024-05-14T07:43:19Z | - |
dc.date.created | 2024-04-16 | - |
dc.date.created | 2024-04-16 | - |
dc.date.issued | 2006-08 | - |
dc.identifier.citation | Journal of Alloys and Compounds, Vol.419 No.1-2, pp.281-289 | - |
dc.identifier.issn | 0925-8388 | - |
dc.identifier.uri | https://hdl.handle.net/10371/202123 | - |
dc.description.abstract | Nanocrystalline cemented tungsten carbide has attracted considerable interests for use in cutting tool,because of its superior mechanical properties. In this study, nano-sized powders of mixed WC and Co were prepared from attrition-milled oxides by a gas reduction-carburization process. The effects of compacting pressure, heating schedule, additional ball-milling, and the presence of a grain growth inhibitor on the sintering properties of the nano-sized WC-Co powders were examined. The grain size and phases in WC-Co alloy were clearly affected by compacting pressure. Because of the trapped gases and the lower melting point of the cobalt binder, when a compact of nano-sized WC-Co powder was sintered through a heating schedule with holding steps, the sintered alloy maintained the small size of WC grains without any eta phase. In addition, the additional ball-milling improved the microstructure and mechanical properties of the nano-sized WC-Co powder by producing a more uniform distribution of carbon. The addition of VC led to uniformity in microstructure and mechanical properties, even though significant carbon loss occurred. (c) 2005 Elsevier B.V. All rights reserved. | - |
dc.language | 영어 | - |
dc.publisher | Elsevier BV | - |
dc.title | Sintering of nano-sized WC-Co powders produced by a gas reduction-carburization process | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.jallcom.2005.09.060 | - |
dc.citation.journaltitle | Journal of Alloys and Compounds | - |
dc.identifier.wosid | 000238991900048 | - |
dc.identifier.scopusid | 2-s2.0-33745233062 | - |
dc.citation.endpage | 289 | - |
dc.citation.number | 1-2 | - |
dc.citation.startpage | 281 | - |
dc.citation.volume | 419 | - |
dc.description.isOpenAccess | N | - |
dc.contributor.affiliatedAuthor | Lee, Gwan-Hyoung | - |
dc.contributor.affiliatedAuthor | Kang, Shinhoo | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | CEMENTED CARBIDES | - |
dc.subject.keywordPlus | GROWTH-INHIBITION | - |
dc.subject.keywordPlus | VC | - |
dc.subject.keywordPlus | COMPACTION | - |
dc.subject.keywordPlus | HARDMETAL | - |
dc.subject.keywordPlus | ALLOYS | - |
dc.subject.keywordPlus | MICROSTRUCTURE | - |
dc.subject.keywordPlus | MECHANISM | - |
dc.subject.keywordPlus | ISSUES | - |
dc.subject.keywordAuthor | tungsten carbide | - |
dc.subject.keywordAuthor | nanopowders | - |
dc.subject.keywordAuthor | eta-phase | - |
dc.subject.keywordAuthor | compacting pressure | - |
dc.subject.keywordAuthor | sintering | - |
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