DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Joo-Hyung | ko |
dc.contributor.author | Baek, Changyeon | ko |
dc.contributor.author | Kim, Dong Seok | ko |
dc.contributor.author | Lim, Seong Taek | ko |
dc.contributor.author | Kim, Do Kyung | ko |
dc.date.accessioned | 2017-03-28T06:56:42Z | - |
dc.date.available | 2017-03-28T06:56:42Z | - |
dc.date.created | 2017-03-02 | - |
dc.date.created | 2017-03-02 | - |
dc.date.issued | 2016-12 | - |
dc.identifier.citation | Korean Journal of Materials Research, v.26, no.12, pp.751 - 756 | - |
dc.identifier.issn | 1225-0562 | - |
dc.identifier.uri | http://hdl.handle.net/10203/220974 | - |
dc.description.abstract | Graphite was diffusion-bonded by hot-pressing to W-25Re alloy using a Ti interlayer. For the joining, a uniaxial pressure of 25 MPa was applied at 1600 °C for 2 hrs in an argon atmosphere with a heating rate of 10 °C min-1. The interfacial microstructure and elemental distribution of the W-25Re/Ti/Graphite joints were analyzed by scanning electron microscopy (SEM). Hot-pressed joints appeared to form a stable interlayer without any micro-cracking, pores, or defects. To investigate the high-temperature stability of the W-25Re/Ti/Graphite joint, an oxy-acetylene torch test was conducted for 30 seconds with oxygen and acetylene at a 1.3:1 ratio. Cross-sectional analysis of the joint was performed to compare the thickness of the oxide layer and its chemical composition. The thickness of W-25Re changed from 250 to 20 μm. In the elemental analysis, a high fraction of rhenium was detected at the surface oxidation layer of W-25Re, while the W-25Re matrix was found to maintain the initial weight ratio. Tungsten was first reacted with oxygen at a torch temperature over 2500 °C to form a tungsten oxide layer on the surface of W-25Re. Then, the remaining rhenium was subsequently reacted with oxygen to form rhenium oxide. The interfacial microstructure of the Ti-containing interlayer was stable after the torch test at a temperature over 2500 °C. | - |
dc.language | English | - |
dc.publisher | Korea Federation of Science and Technology | - |
dc.title | Interfacial microstructure of diffusion-bonded W-25Re/Ti/graphite joint and its high-temperature stability | - |
dc.title.alternative | 확산 접합에 의해 제조된 텅스텐-레늄 합금/티타늄/그래파이트접합체의 미세구조 및 고온 안정성 | - |
dc.type | Article | - |
dc.identifier.scopusid | 2-s2.0-85015204924 | - |
dc.type.rims | ART | - |
dc.citation.volume | 26 | - |
dc.citation.issue | 12 | - |
dc.citation.beginningpage | 751 | - |
dc.citation.endingpage | 756 | - |
dc.citation.publicationname | Korean Journal of Materials Research | - |
dc.identifier.doi | 10.3740/MRSK.2016.26.12.751 | - |
dc.identifier.kciid | ART002178022 | - |
dc.contributor.localauthor | Kim, Do Kyung | - |
dc.contributor.nonIdAuthor | Kim, Dong Seok | - |
dc.contributor.nonIdAuthor | Lim, Seong Taek | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
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