• Airborne Emissions from Mn Ferroalloy Production 

      Kero, Ida; Eidem, Per Anders; Ma, Yan; Indresand, Hege; Aarhaug, Thor Anders; Grådahl, Svend (Journal article; Peer reviewed, 2018)
      Airborne emissions from metal production represent a health, safety, and environmental challenge to which more and more attention is being directed. Industries worldwide, as well as authorities and others, are resolute in ...
    • Element distribution in the silicomanganese production process 

      Ma, Yan; Moosavi-Khoonsari, Elmira; Kero, Ida; Tranell, Gabriella (Journal article; Peer reviewed, 2018)
      A pilot scale, silicomanganese alloy production campaign was performed in a 440 kVA, single phase electric furnace in order to establish an overview of the minor- and trace element contents in process input raw materials ...
    • Evaluation of hydrogen effect on the fatigue crack growth behavior of medium-Mn steels via in-situ hydrogen plasma charging in an environmental scanning electron microscope 

      Wan, Di; Ma, Yan; Sun, Binhan; Razavi, Seyed Mohammad Javad; Wang, Dong; Lu, Xu; Song, Wenwen (Peer reviewed; Journal article, 2021)
      Fatigue crack growth (FCG) tests were conducted on a medium-Mn steel annealed at two intercritical annealing temperatures, resulting in different austenite () to ferrite () phase fractions and different (meta-)stabilities. ...
    • Fume Formation from Oxidation of Liquid SiMn Alloy 

      Ma, Yan; Kero, Ida; Tranell, Gabriella (Journal article; Peer reviewed, 2017)
      Thermally generated fumes from the production of manganese ferroalloys are mostly composed of metallic oxides generated due to reaction between high-temperature molten metal and ambient oxygen in the air. In the current ...
    • On the hydrogen embrittlement behavior of nickel-based alloys: Alloys 718 and 725 

      Lu, Xu; Ma, Yan; Wang, Dong (Peer reviewed; Journal article, 2020)
      Nickel-based superalloys have attracted immense attention in the oil and gas industry due to their outstanding combination of mechanical properties and corrosion resistance. In corrosive service environment, hydrogen ...
    • Oxidation and fume formation during production of Si and Mn-based alloys 

      Ma, Yan (Doctoral theses at NTNU;2018:313, Doctoral thesis, 2018)
      Thermally generated fumes from the production process of manganese ferroalloys are generated due to the reaction between high temperature liquid- or metal vapor and ambient oxygen in the air, and are mostly composed of ...
    • Oxidation of Liquid Silicon in Air Atmospheres Containing Water Vapor 

      Ma, Yan; Jiang, Bo; Moosavi-Khoonsari, Elmira; Andersson, Stefan; Opila, Elizabeth J.; Tranell, Gabriella (Peer reviewed; Journal article, 2019)
      The oxidation of silicon (Si) has been extensively investigated over the past 50 years. Yet, an understanding of the mechanism and rate of liquid Si oxidation in atmospheres containing water vapor, is lacking. The effect ...