DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, S | ko |
dc.contributor.author | Park, C | ko |
dc.contributor.author | Lim, Y | ko |
dc.contributor.author | Kwon, Hyuk-Sang | ko |
dc.date.accessioned | 2011-11-21T11:54:22Z | - |
dc.date.available | 2011-11-21T11:54:22Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2003-09 | - |
dc.identifier.citation | JOURNAL OF NUCLEAR MATERIALS, v.321, no.2-3, pp.177 - 183 | - |
dc.identifier.issn | 0022-3115 | - |
dc.identifier.uri | http://hdl.handle.net/10203/25711 | - |
dc.description.abstract | The influence of laser surface alloying (LSA) with niobium (Nb) on the corrosion and mechanical properties of Zircaloy-4 was examined by potentiodynamic polarization test in a chloride solution at 80 degreesC and immersion test in a steam at 400 degreesC, and microhardness test. The results are discussed with structural and compositional variations of LSA layer. LSA on the Zircaloy-4 precoated with Nb produced a Nb-alloyed layer 170-300 mum thick with 1.3-2.5 wt% Nb, depending on laser beam power. The alloyed layer was composed of a mixed structure of alpha-Zr and beta-Zr phases with the beta-Zr phase being increased with the Nb content in the alloyed layer. Microhardness of Zircaloy-4 was increased by LSA with Nb, due to three factors; solid solution hardening with Nb, grain-size refinement by rapid cooling, and transformed beta phase. The significant improvement in the resistance to localized corrosion of laser surface alloyed Zircaloy-4 in a chloride solution was attributed to the combined effects of rapidly cooled fine microstructure and the Nb alloying. However, the corrosion resistance of laser surface alloyed Zircaloy-4 was reduced in steam at 400 degreesC, a result of the formation of beta-Zr phase and Zr hydrides. (C) 2003 Elsevier B.V. All rights reserved. | - |
dc.description.sponsorship | This work was done under 97 Nuclear R&D supported by Korean Ministry of Science and Technology and 97 Electrical Technique Research supported by Electrical Engineering & Science Research Institute. | en |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | NITROGEN-IMPLANTED ZIRCALOY-4 | - |
dc.subject | MICROSTRUCTURE | - |
dc.subject | BEHAVIOR | - |
dc.title | Influences of laser surface alloying with niobium (Nb) on the corrosion resistance of Zircaloy-4 | - |
dc.type | Article | - |
dc.identifier.wosid | 000185420600009 | - |
dc.identifier.scopusid | 2-s2.0-0041358916 | - |
dc.type.rims | ART | - |
dc.citation.volume | 321 | - |
dc.citation.issue | 2-3 | - |
dc.citation.beginningpage | 177 | - |
dc.citation.endingpage | 183 | - |
dc.citation.publicationname | JOURNAL OF NUCLEAR MATERIALS | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Kwon, Hyuk-Sang | - |
dc.contributor.nonIdAuthor | Lee, S | - |
dc.contributor.nonIdAuthor | Park, C | - |
dc.contributor.nonIdAuthor | Lim, Y | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | NITROGEN-IMPLANTED ZIRCALOY-4 | - |
dc.subject.keywordPlus | MICROSTRUCTURE | - |
dc.subject.keywordPlus | BEHAVIOR | - |
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