Blar i SINTEF Open på forfatter "Langelandsvik, Geir"

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    • Comparative study of eutectic Al-Si alloys manufactured by WAAM and casting 

      Langelandsvik, Geir; Horgar, Annbjørg; Furu, Trond; Roven, Hans Jørgen; Akselsen, Odd Magne (Peer reviewed; Journal article, 2020)
      Wire and arc additive manufacturing (WAAM) of metallic materials is expected to become part of the new industrial revolution. The possibilities for complex designs and superior mechanical properties can in many cases replace ...

    • Depth profiling at a steel-aluminum interface using slow-flow direct current glow discharge mass spectrometry 

      Paudel, Gagan; Langelandsvik, Geir; Khromov, Sergey; Arbo, Siri Marthe; Westermann, Ida; Roven, Hans Jørgen; Di Sabatino Lundberg, Marisa (Peer reviewed; Journal article, 2021)
      Direct current glow discharge mass spectrometry (dc-GDMS), which relies on sector field mass analyzers, is not commonly used for depth profiling applications because of its slow data acquisition. Nevertheless, dc-GDMS has ...

    • Development of Al-TiC Wire Feedstock for Additive Manufacturing by Metal Screw Extrusion 

      Langelandsvik, Geir; Grandcolas, Mathieu; Skorpen, Kristian Grøtta; Furu, Trond; Akselsen, Odd Magne; Roven, Hans Jørgen (Metals;2075-4701, Peer reviewed; Journal article, 2020)
      The development of customised aluminium alloys for welding and additive manufacturing (AM) is proposed to solve several quality issues and to enhance the mechanical integrity of components. The introduction of ceramic grain ...

    • Effect of preheating and preplaced filler wire on microstructure and toughness in laser-arc hybrid welding of thick steel 

      Bunaziv, Ivan; Langelandsvik, Geir; Ren, Xiaobo; Westermann, Ida; Rørvik, Gisle; Dørum, Cato; Danielsen, Morten Høgseth; Eriksson, Magnus Carl Fredrik (Peer reviewed; Journal article, 2022)
      Acicular ferrite (AF) is the most important microstructural constituent to achieve high toughness at low temperatures in weld metal of steels. This is due to the relatively small grain size and large misorientation angles. ...

    • Effects of iron precipitation and novel metal screw extrusion on electrical conductivity and properties of AA1370 aluminium 

      Langelandsvik, Geir; Furu, Trond; Reiso, Oddvin; Roven, Hans Jørgen (Peer reviewed; Journal article, 2020)
      In order to develop well-performing aluminium electrical conductors, the role of iron and processing method on electrical and mechanical properties was studied for an AA1370 alloy. Firstly, Ø3 mm cold drawn wires were ...

    • Grain refinement of aluminium welds by Ti, TiB2, and TiC filler wire inoculation 

      Kirkbakk, Kjell Martin; Marhaug, Nikolai; Langelandsvik, Geir; Werenskiold, Jens Christofer (Peer reviewed; Journal article, 2023)
      A fine-grained fusion zone characterises a tough aluminium weld. To improve the solidification characteristics and refine the grains in aluminium welding, different inoculation particle combinations were introduced to the ...

    • Review of Aluminum Alloy Development for Wire Arc Additive Manufacturing 

      Langelandsvik, Geir; Akselsen, Odd Magne; Furu, Trond; Roven, Hans Jørgen (Peer reviewed; Journal article, 2021)
      Processing of aluminum alloys by wire arc additive manufacturing (WAAM) gained significant attention from industry and academia in the last decade. With the possibility to create large and relatively complex parts at low ...

    • Wire and Arc Additive Manufacturing with TiC-Nanoparticle Reinforced AA5183 Alloy 

      Langelandsvik, Geir; Ragnvaldsen, Olav; Flåm, Jan Eskil; Akselsen, Odd Magne; Roven, Hans Jørgen (Peer reviewed; Journal article, 2020)
      Wire and arc additive manufacturing of aluminium-ceramic composites shows great potential to produce high strength materials. By incorporation of nanoparticles in the feedstock wire, fine-grained material with low ...

    • Wire arc additive manufacturing of AA5183 with TiC nanoparticles 

      Langelandsvik, Geir; Eriksson, Magnus; Akselsen, Odd M.; Roven, Hans Jørgen (Peer reviewed; Journal article, 2021)
      Aluminium alloys processed by wire arc additive manufacturing (WAAM) exhibit a relatively coarse microstructure with a columnar morphology. A powerful measure to refine the microstructure and to enhance mechanical properties ...

    • Wire-arc additive manufacturing of structures with overhang: Experimental results depositing material onto fixed substrate 

      Evjemo, Linn Danielsen; Langelandsvik, Geir; Moe, Signe; Danielsen, Morten Høgseth; Gravdahl, Jan Tommy (Peer reviewed; Journal article, 2022)
      As additive manufacturing (AM) technology grows both more advanced and more available, the challenges and limitations are also made more evident. Most existing solutions for AM build structures layer by layer using strictly ...