Print Email Facebook Twitter Applicability study of pulsed laser beam welding on ferritic–martensitic ODS eurofer steel Title Applicability study of pulsed laser beam welding on ferritic–martensitic ODS eurofer steel Author Fu, J. (TU Delft (OLD) MSE-5) van Slingerland, J. (TU Delft (OLD) MSE-5; FOM Institute DIFFER - Dutch Institute for Fundamental Energy Research) Brouwer, J.C. (TU Delft (OLD) MSE-1) Bliznuk, Vitaliy (Universiteit Gent) Richardson, I.M. (TU Delft (OLD) MSE-5) Hermans, M.J.M. (TU Delft (OLD) MSE-5) Date 2020 Abstract Pulsed laser beam welding was used successfully to join the oxide dispersion-strengthened (ODS) Eurofer steel. The joining was conducted with a laser power of 2500 W and a pulsed duration of 4 ms. With the filler material being used, a minor material loss and microvoids were observed in the joint. The microstructure of the fusion zone consists of dual phase elongated structures. The heat-affected zone has a width of around 0.06 mm with finer grains. The transmission electron microscopy observation reveals that nanoprecipitates are finely distributed in the fusion zone. The tensile strength, yield strength and elongation of the joint are slightly inferior to the base material. The fractography results reveal a typical ductile fracture. The experimental results indicate a reasonable joint from the perspective of both the microstructure and mechanical behaviour. Subject Electron microscopyLaser weldingMechanical propertiesMicrostructureOxide dispersion strengthened (ODS) alloy To reference this document use: http://resolver.tudelft.nl/uuid:03782203-f8f2-43c8-8ff3-8b40048d3ebe DOI https://doi.org/10.3390/met10060736 ISSN 2075-4701 Source Metals, 10 (6) Part of collection Institutional Repository Document type journal article Rights © 2020 J. Fu, J. van Slingerland, J.C. Brouwer, Vitaliy Bliznuk, I.M. Richardson, M.J.M. Hermans Files PDF metals_10_00736.pdf 1.55 MB Close viewer /islandora/object/uuid:03782203-f8f2-43c8-8ff3-8b40048d3ebe/datastream/OBJ/view