DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yang, SJ | ko |
dc.contributor.author | Nam, Soo Woo | ko |
dc.contributor.author | Hagiwara, M | ko |
dc.date.accessioned | 2013-03-03T16:52:42Z | - |
dc.date.available | 2013-03-03T16:52:42Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2003-02 | - |
dc.identifier.citation | JOURNAL OF ALLOYS AND COMPOUNDS, v.350, no.1-2, pp.280 - 287 | - |
dc.identifier.issn | 0925-8388 | - |
dc.identifier.uri | http://hdl.handle.net/10203/79555 | - |
dc.description.abstract | The O-phase (orthorhombic Ti2AlNb phase) intermetallic alloy has been considered one of the strongest materials for high temperature application. The primary compositions of the test alloys in this paper are Ti-22Al-27Nb (at.%) and Ti-22Al-20Nb-2W (at.%). By in-situ X-ray diffraction (XRD) tests, each phase is identified and the lattice parameters of each phase are calculated for different temperatures. XRD tests show that a T2AlNb-beta phase, partially ordered b.c.c. phase, exists besides O, alpha(2) and B2 that are usually expected in the Ti-Al-Nb alloy system. In this paper, the effects of tungsten on the microstructure and micro-hardness of a Tl2AlNb-based (O+b.c.c.) alloy are investigated. The effects of W on Ti2AlNb-based intermetallic alloys are widely known to cause a refinement of microstructure and improvement of mechanical strength, however, the reason has not yet been reported. In this paper, the role of W in the improvement of mechanical strength is clarified. The main effect of W addition is not the formation of a solid solution or the formation of W-precipitates but the refinement of the Widmanstatten structure. (C) 2002 Elsevier Science B.V. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | ORTHORHOMBIC TI-22AL-20NB-2W ALLOY | - |
dc.subject | TI3AL-NB ALLOY | - |
dc.subject | O-PHASE | - |
dc.title | Phase identification and effect of W on the microstructure and micro-hardness of Ti2AlNb-based intermetallic alloys | - |
dc.type | Article | - |
dc.identifier.wosid | 000180890000044 | - |
dc.type.rims | ART | - |
dc.citation.volume | 350 | - |
dc.citation.issue | 1-2 | - |
dc.citation.beginningpage | 280 | - |
dc.citation.endingpage | 287 | - |
dc.citation.publicationname | JOURNAL OF ALLOYS AND COMPOUNDS | - |
dc.identifier.doi | 10.1016/S0925-8388(02)00956-8 | - |
dc.contributor.nonIdAuthor | Yang, SJ | - |
dc.contributor.nonIdAuthor | Hagiwara, M | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | transition metal compounds | - |
dc.subject.keywordAuthor | intermetallics | - |
dc.subject.keywordAuthor | high-temperature alloys | - |
dc.subject.keywordPlus | ORTHORHOMBIC TI-22AL-20NB-2W ALLOY | - |
dc.subject.keywordPlus | TI3AL-NB ALLOY | - |
dc.subject.keywordPlus | O-PHASE | - |
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