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    • A 2D sediment bed morphodynamics model for turbulent, non-Newtonian, particle-loaded flows 

      Busch, Alexander; Khatibi, Milad; Johansen, Stein Tore; Time, Rune Wiggo (Chapter, 2017)
      In petroleum drilling, cuttings transport problems, i.e. an accumulation of drilled of solids in the wellbore, are a major contributor to well downtime and have therefore been extensively researched over the years, both ...
    • A method for comparing the HF formation potential of aluminas with different water contents 

      Sommerseth, Camilla; Osen, Karen Sende; Rosenkilde, Christian; Meyer, Astrid J.; Kristiansen, Linda; Aarhaug, Thor Anders (Chapter, 2012)
      In the aluminium industry today, smelters often have to rely on more than one alumina supplier. This creates diversity in the properties of smelter grade alumina (SGA). A method has been developed to compare the HF formation ...
    • A methodology to assess the spatial distribution of dispersoids in AL-MG-Si alloys 

      Marthinsen, Knut; Westermann, Ida; Remøe, Magnus Sætersdal (Chapter, 2018)
      Al-Mg-Si alloys often add small additions of e.g. Mn or Cr, to form dispersoids, which may act as nucleation sites for Mg2Si particles after homogenization. The purpose is to ensure a high density of uniformly distributed ...
    • A methodology to assess the spatial distribution of dispersoids in Al-Mg-Si alloys 

      Remøe, Magnus Sætersdal; Westermann, Ida; Marthinsen, Knut (Chapter, 2018)
      Al-Mg-Si alloys often add small additions of e.g. Mn or Cr, to form dispersoids, which may act as nucleation sites for Mg2Si particles after homogenization. The purpose is to ensure a high density of uniformly distributed ...
    • A multiscale numerical approach of the dripping slag in the coke bed zone of a pilot scale Si-Mn furnace 

      Letout, Sebastien Romain; Ratvik, Arne Petter; Tangstad, Merete; Johansen, Stein Tore; Olsen, Jan Erik (Chapter, 2017)
      The Si-Mn alloy process production in submerged arc furnaces (SAF) is investigated. The aim of the studies currently in progress is an enhancement of the knowledge about the key reactions and the mass transport phenomenon ...
    • Boron Removal from Silicon by Moisturized Gases 

      Safarian, Jafar; Sana, Claudio; Tranell, Gabriella (Chapter, 2017)
      The photovoltaic (PV) industry is in rapid growth and a large supply of PV feedstock materials must be provided to maintain this growth. Since silicon is still the dominant material for the fabrication of solar cells, ...
    • Chapter 9 - Coatings and surfaces with hydrophobic and anti-icing properties 

      Lein, Hilde Lea (Chapter, 2019)
      Icing on surfaces has always been a problem if water is present under freezing conditions. The ice can cause large damage to equipment and installations, and it is therefore of greatest interest to look into possibilities ...
    • Degreasing of aluminum turnings and implications for solid state recycling 

      Cui, Jirang; Kvithyld, Anne; Roven, Hans Jørgen (Chapter, 2010)
      With the global warming being of concern, recycling of aluminum by new solid-state recycling techniques instead of conventional remelting and subsequent refining processing has been taken into account. Solid-state recycling ...
    • EBSD Quantification of Retained Austenite in 9% Ni Steel Related to Thermal Treatments 

      Jahrsengene, Gøril; Wenn, Maia; Karlsen, Morten; Westermann, Ida; Akselsen, Odd Magne; Hjelen, Jarle (Chapter, 2015)
      The present work has been to study the effect of different finalizing preparation techniques on the amount of retained austenite measured with Electron Backscatter Diffraction (EBSD) and X-Ray-Diffraction (XRD) analysis. ...
    • Effect of Magnesium Addition on Removal of Impurities from Silicon by Hydrometallurgical Treatment 

      Espelien, Stine; Tranell, Gabriella; Safarian, Jafar (Chapter, 2017)
      Hydrometallurgical treatment of silicon is an effective process for the removal of metallic impurities for producing solar grade silicon feedstock. In the present research, the removal of impurities from silicon is studied ...
    • Effect of Magnesium Addition on Removal of Impurities from Silicon by Hydrometallurgical Treatment 

      Espelien, Stine; Tranell, Gabriella; Safarian, Jafar (Chapter, 2017)
      Hydrometallurgical treatment of silicon is an effective process for the removal of metallic impurities for producing solar grade silicon feedstock. In the present research, the removal of impurities from silicon is studied ...
    • Effect of Processing Parameters on the Relative Density of AlSi10Mg Processed by Laser Powder Bed Fusion 

      Hovig, Even Wilberg; Holm, Håkon Dehli; Sørby, Knut (Chapter, 2019)
      In order for a material processed by laser powder bed fusion (LPBF) to achieve the desired mechanical properties, the relative density of the material should be as high as possible. In this study, the effect of various ...
    • Effects of 2 ppm Beryllium on the Oxidation of a 5XXX Aluminum Alloy at Temperatures Between 500 and 750 °C 

      Smith, Nicholas (Chapter, 2017)
      The oxidation of molten aluminum has been thoroughly studied, and it is established empirically that beryllium has an inhibiting effect on the oxidation behavior. The aim of this work was to increase the fundamental ...
    • Effects of CO2 cover gas and yttrium additions on the oxidation of AlMg alloys 

      Smith, Nicholas Albert; Gleeson, Brian; wissam, saidi; Kvithyld, Anne; Tranell, Gabriella (Chapter, 2019)
      AlMg alloys are known to suffer from problematic oxidation that can result in significant dross formation and loss of Mg from the melt. Historically, beryllium has been used to minimize the oxidation as it forms a protective ...
    • Electrochemical Behaviour of Carbon Anodes Produced with Different Mixing Temperatures and Baking Levels—A Laboratory Study 

      Sommerseth, Camilla; Thorne, Rebecca Jayne; Gebarowski, Wojciech; Ratvik, Arne Petter; Rørvik, Stein; Linga, Hogne; Lossius, Lorentz Petter; Svensson, Ann Mari (Chapter, 2019)
      Anodes fabricated from a single source coke were used for investigations of effect of porosity and surface roughness on the electrochemical performance in laboratory scale cells. In order to fabricate anodes differing in ...
    • Enabling Efficient Heat Recovery from Aluminium Pot Gas 

      Clos, Daniel Perez; Andresen, Trond; Nekså, Petter; Johnsen, Sverre Gullikstad; Aune, Ragnhild Elizabeth (Chapter, 2017)
      In the present work, previous studies carried out by the Norwegian aluminium industry and research centres with the aim of recovering heat from aluminium production off-gas, are reviewed. The main challenge in improving ...
    • Evolution in texture and its through-thickness variations in Al-Mg-Si-extrusions: experiments and modelling 

      Zhang, Kai; Marthinsen, Knut; Holmedal, Bjørn; Aukrust, Trond; Segatori, Antonio (Chapter, 2018)
      The visual appearance and mechanical properties of aluminium alloy extrusions are strongly dependent on the microstructure and texture of the extruded profiles, where the desired microstructure and texture may depend on ...
    • Gaseous reduction of Mn ores in CO-CO2 atmosphere 

      Larssen, Trine Asklund; Tangstad, Merete; Kero, Ida (Chapter, 2018)
      The efficiency in production of manganese ferroalloys is dependent on the gaseous reduction of the higher manganese oxides in the ores used as raw materials. The materials, descending in the furnace, will meet the furnace ...
    • Heat-Treatable Aluminum Alloys: Three-Point Bending 

      Westermann, Ida; Gruben, Gaute (Chapter, 2018)
    • How to probe structure, kinetics and dynamics at complex interfaces in situ and operando by optical spectroscopy 

      Erbe, Andreas; Nayak, Simantini; Chen, Ying-Hsuan; Niu, Fang; Pander, Marc; Tecklenburg, Stefanie; Toparli, Cigdem (Chapter, 2017)
      Techniques using light in a large spectral range are well suited to study interfaces. Photon-based techniques have a special strength when it comes to application in situ and operando. This article introduces some of the ...

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