DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ryu, Ho Jin | ko |
dc.contributor.author | Hong, Soon-Hyung | ko |
dc.date.accessioned | 2007-12-11T03:35:25Z | - |
dc.date.available | 2007-12-11T03:35:25Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2003-12 | - |
dc.identifier.citation | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.363, no.1-2, pp.179 - 184 | - |
dc.identifier.issn | 0921-5093 | - |
dc.identifier.uri | http://hdl.handle.net/10203/2395 | - |
dc.description.abstract | The microstructures and mechanical properties of mechanically alloyed oxide-dispersed tungsten heavy alloys were investigated. Elemental powders of tungsten, nickel, and iron of a composition corresponding to 93W-5.6Ni-1.4Fe (wt.%) were mechanically alloyed with additional Y2O3 powders in a tumbler ball mill for 72 h. Mechanically alloyed powders were solid-state sintered at 1300degreesC for I h followed by secondary liquid-phase sintering at 1470degreesC for a sintering time ranging from 4 to 90 min. Liquid-phase sintering of oxide-dispersed tungsten heavy alloys at 1485degreesC for I h was also carried out. Oxide-dispersed tungsten heavy alloys containing 0.1-5 wt.% Y2O3 can be obtained and oxide dispersoids effectively inhibit the coarsening of tungsten particles during sintering. A high temperature compression test of tungsten heavy alloys at 800degreesC showed that the strength of mechanically alloyed oxide-dispersed tungsten heavy alloys increased with the oxide content. In split-Hopkinson bar tests at a strain rate of 10(4) s(-1), the oxide-dispersed tungsten heavy alloy showed a tendency for premature failure during localized shear deformation due to debonding at the oxide/matrix interfaces. (C) 2003 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | Fabrication and properties of mechanically alloyed oxide-dispersed tungsten heavy alloys | - |
dc.type | Article | - |
dc.identifier.wosid | 000186851000023 | - |
dc.identifier.scopusid | 2-s2.0-0242499258 | - |
dc.type.rims | ART | - |
dc.citation.volume | 363 | - |
dc.citation.issue | 1-2 | - |
dc.citation.beginningpage | 179 | - |
dc.citation.endingpage | 184 | - |
dc.citation.publicationname | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | - |
dc.identifier.doi | 10.1016/S0921-5093(03)00641-5 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Ryu, Ho Jin | - |
dc.contributor.localauthor | Hong, Soon-Hyung | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | tungsten heavy alloy | - |
dc.subject.keywordAuthor | mechanical alloying | - |
dc.subject.keywordAuthor | oxide dispersion | - |
dc.subject.keywordAuthor | sintering | - |
dc.subject.keywordAuthor | mechanical properties | - |
dc.subject.keywordPlus | DYNAMIC DEFORMATION-BEHAVIOR | - |
dc.subject.keywordPlus | ENERGY PENETRATOR MATERIALS | - |
dc.subject.keywordPlus | W/W GRAIN-BOUNDARIES | - |
dc.subject.keywordPlus | MATRIX PENETRATION | - |
dc.subject.keywordPlus | AL2O3 PARTICLES | - |
dc.subject.keywordPlus | GROWTH | - |
dc.subject.keywordPlus | MICROSTRUCTURE | - |
dc.subject.keywordPlus | INHIBITION | - |
dc.subject.keywordPlus | KINETICS | - |
dc.subject.keywordPlus | FRACTURE | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.