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Brazing tungsten/tantalum/RAFM steel joint for DEMO by fully reduced activation brazing alloy 48Ti-48Zr-4Be

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dc.contributor.authorSomov, P.
dc.contributor.authorBachurina, D.
dc.contributor.authorSuchkov, A.
dc.contributor.authorGurova, J.
dc.contributor.authorKliucharev, V.
dc.contributor.authorVorkel, V.
dc.contributor.authorSavelyev, M.
dc.contributor.authorSevryukov, O.
dc.contributor.authorСучков, Алексей Николаевич
dc.contributor.authorГурова, Юлия Александровна
dc.contributor.authorСавельев, Максим Дмитриевич
dc.contributor.authorСеврюков, Олег Николаевич
dc.date.accessioned2024-11-29T20:04:25Z
dc.date.available2024-11-29T20:04:25Z
dc.date.issued2021
dc.description.abstract© 2021 by the authors. Licensee MDPI, Basel, Switzerland.To create a DEMO reactor, it is necessary to develop high-quality technology to join tungsten with reduced-activation ferritic-martensitic (RAFM) steel (Rusfer, Eurofer, CLF-1, etc.). Diffi-culties arise in their direct connection due to the large difference in the coefficient of thermal expan-sion (CTE). To suppress the difference of CTE, intermediate interlayers are usually used, such as vanadium or tantalum, and brazing is a prospective technology to conduct the joining. The vast majority of works represent copper-or nickel-based brazing alloys, but their applicability is under significant discussion due to their activation properties. That is why, in this work, fully reduced activation 48Ti-48Zr-4Be wt.% brazing alloy was used. The following joint was made: Rusfer steel/48Ti-48Zr-4Be/Ta/48Ti-48Zr-4Be/W. The brazing was successfully carried out under a mode providing thermal heat treatment of Rusfer. Through EDS and EBSD analysis, the microstructure of the joint was determined. Shear strength of the as-joined composition was measured as 127 ± 20 MPa. The joint endured 200 thermocycles in the temperature range between 300-600 °C, but the fillet regions degraded.
dc.identifier.citationBrazing tungsten/tantalum/RAFM steel joint for DEMO by fully reduced activation brazing alloy 48Ti-48Zr-4Be / Somov, P. [et al.] // Metals. - 2021. - 11. - № 9. - 10.3390/met11091417
dc.identifier.doi10.3390/met11091417
dc.identifier.urihttps://www.doi.org/10.3390/met11091417
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85114289205&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000701405700001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/24655
dc.relation.ispartofMetals
dc.titleBrazing tungsten/tantalum/RAFM steel joint for DEMO by fully reduced activation brazing alloy 48Ti-48Zr-4Be
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue9
oaire.citation.volume11
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