Blar i SINTEF Open på forfatter "Kvithyld, Anne"

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    • Aluminium Filtration by Bonded Particle Filters 

      Kvithyld, Anne; Syvertsen, Martin; Bao, Sarina; Eriksen, Ulrik Aalborg; Johansen, Inge; Gundersen, Eilif; Akhtar, Shahid; Haugen, Terje; Gihleengen, Britt Elin (The Minerals, Metals & Materials Series;2367-1181, Chapter, 2019)
      Non-metallic inclusions such as oxides, borides and carbides in aluminium melts are a major cause of product failure during both processing and use. To remove these inclusions, molten aluminium is usually filtered through ...

    • Aluminium packaging flows in Norway 

      Skramstad, Magnus; Syvertsen, Martin; Kvithyld, Anne (Research report, 2021)
      This report gives an overview of aluminium packaging flows in Norway illus-trated with diagrams where the metal flow arrows are proportional to the ton-nage between distinct collection/processing steps. The results show ...

    • Aluminium packaging flows in Norway - Overview and challenges 

      Skramstad, Magnus; Syvertsen, Martin; Kvithyld, Anne (Research report, 2021)

    • Beryllium Reduction Potential in AlMg Cast Alloys 

      Steglich, Jan; Basa, Alexandra; Kvithyld, Anne; Smith, Nicholas Albert; Zerbin, Ines (The Minerals, Metals & Materials Series;2367-1181, Chapter; Peer reviewed, 2020)
      Beryllium is used in many aluminium-magnesium alloys to minimize molten metal oxidation and oxide entrainment. As beryllium containing dust and fumes have detrimental effects on health, its use has to be limited. The ...

    • Characterization of inclusion content in mechanical aluminium filters 

      Eriksen, Ulrik Aalborg; Johansen, Inge; Syvertsen, Martin; Kvithyld, Anne; Bao, Sarina (SINTEF Rapport;2387-4295, Research report, 2019)

    • Collection of aluminium packaging today 

      Bækken, Idun; Bao, Sarina; Kvithyld, Anne (Research report, 2019)
      This report investigates the collection of aluminium packaging, particularly in China, the United States and the European Union. A literature search among journal articles using Google Scholar, company and organization ...

    • Compaction of aluminium foil and its effect on oxidation and recycling yield 

      Vallejo-Olivares, Alicia; Philipson, Harald; Gökelma, Mertol; Roven, Hans Jørgen; Furu, Trond; Kvithyld, Anne; Tranell, Gabriella (Peer reviewed; Journal article, 2021)
      One of the problems when recycling aluminium is its oxidation and consequent metal loss. This is especially critical for the thin sheet/foil materials used for food packaging applications. Compacting the scrap into briquettes ...

    • Discussion of bi-film index and LiMCA data in industrial aluminum remelting trials 

      Kvithyld, Anne; Sæter, Jan Anders; Syvertsen, Martin; Fossheim, Harry; Nordmark, Arne; Sottar, Ronny; Engh, Thorvald Abel (Peer reviewed; Journal article, 2018)
      The trend in the aluminum high end market is to set unrealistic quality requirements e.g. inclusion free metal. The importance of quality and the ability to measure is growing. LiMCA is a unique, well-established tool for ...

    • Effect of micro‐alloying elements on the oxidation of a 5 % Mg aluminium alloy 

      Smith, Nicholas Albert; Kvithyld, Anne (Research report, 2020)

    • 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 (Light Metals;2019, Chapter; Peer reviewed, 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 ...

    • Furnace Atmosphere and Dissolved Hydrogen in Aluminium 

      Syvertsen, Martin; Kvithyld, Anne; Gundersen, Eilif; Johansen, Inge; Engh, Thorvald Abel (The Minerals, Metals & Materials Series;2367-1181, Peer reviewed; Journal article, 2019)
      Hydrogen solubility is much higher in liquid than in solid aluminium. Therefore, if the hydrogen concentration in liquid aluminium is too high prior to solidification, there is high risk of gas porosity formation during ...

    • Mechanism behind the Inhibiting Effect of CO2 on the Oxidation of Al−Mg Alloys 

      Smith, Nicholas Albert; Gleeson, Brian; wissam, saidi; Kvithyld, Anne; Tranell, Gabriella (Peer reviewed; Journal article, 2018)
      Al–Mg alloys are known to suffer from problematic oxidation during melting, refining, and casting. The use of a CO2/air cover gas is known to minimize this oxidation; however, a mechanistic understanding of the beneficial ...

    • The Mechanism Behind the Oxidation Protection of High Mg Al Alloys with Beryllium 

      Smith, Nicholas; Kvithyld, Anne; Tranell, Gabriella (Peer reviewed; Journal article, 2018)
      The addition of beryllium to Al-Mg alloys is known to cause a dramatic decrease in oxidation; however, the mechanism behind this protective effect is not yet fully understood. To aid in finding an alternative to the toxic ...

    • Thermal De‑coating Pre‑treatment for Loose or Compacted Aluminum Scrap and Consequences for Salt‑Flux Recycling 

      Vallejo-Olivares, Alicia; Høgåsen, Solveig; Kvithyld, Anne; Tranell, Gabriella (Peer reviewed; Journal article, 2022)
      In aluminum recycling, thermal de-coating pre-treatments remove moisture and organic contamination before re-melting. If the scrap is compacted into bales or briquettes before the thermal treatment and re-melting processes, ...

    • XPS Examination of the Oxide-Metal interface of an Al-Mg Alloy Containing Beryllium 

      Smith, Nicholas; Kvithyld, Anne; Tranell, Gabriella (The Minerals, Metals & Materials Series;2367-1181, Chapter, 2018)
      The addition of beryllium to high magnesium aluminum alloys has long been known to cause a significant decrease in the rate of alloy oxidation. A clear understanding of the fundamental mechanism behind this effect is still ...