Laser welding of fusion relevant steels for the European DEMO

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dc.contributor.authorKirk, Simon
dc.contributor.authorSuder, Wojciech
dc.contributor.authorKeogh, Keelan
dc.contributor.authorTremethick, Tristan
dc.contributor.authorLoving, Anthony B.
dc.date.accessioned2020-03-27T12:32:29Z
dc.date.available2020-03-27T12:32:29Z
dc.date.issued2018-03-30
dc.description.abstractThe construction and maintenance of the European DEMO will require reliable joining of thick-walled Eurofer97 steel cooling pipes between in-vessel components in the reactor. To this end, laser welding has been investigated as a potential method for pipe joining. Two different techniques (keyhole laser welding and hybrid laser-laser welding) were used to produce test welds in Eurofer97 and P91 steel samples. Welds were also produced using different filler wires to reduce the hardness in the weldment region and improve the weld profile. Optical microscopy and hardness mapping were used to assess the quality of the welds produced. From the weld trials, suitable process parameters were identified that resulted in fully penetrated welds with good profiles. Here, we will present the results of the laser welding development process and the properties of the welds produced using these two techniques.en_UK
dc.identifier.citationKirk S, Suder W, Keogh K, et al., (2018) Laser welding of fusion relevant steels for the European DEMO. Fusion Engineering and Design, Volume 136, Part A, November 2018, pp. 612-616en_UK
dc.identifier.issn0920-3796
dc.identifier.urihttps://doi.org/10.1016/j.fusengdes.2018.03.039
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/15334
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectDEMOen_UK
dc.subjectLaser weldingen_UK
dc.subjectMechanical propertiesen_UK
dc.subjectService pipesen_UK
dc.titleLaser welding of fusion relevant steels for the European DEMOen_UK
dc.typeArticleen_UK

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