Blar i Publikasjoner fra CRIStin - NTNU på forfatter "Ma, Yan"

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    • 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 ...

    • How much hydrogen is in green steel? 

      Özgün, Özge; Lu, Xu; Ma, Yan; Raabe, Dierk (Journal article; Peer reviewed, 2023)
      Hydrogen-based reduction of iron ores is the key technology for future sustainable ironmaking, to mitigate the CO2 burden from the steel industry, accounting for ~7–8% of all global emissions. However, using hydrogen as a ...

    • Life Cycle Based Climate Emissions of Charcoal Conditioning Routes for the Use in the Ferro-Alloy Production 

      Surup, Gerrit Ralf; Kaffash, Hamideh; Ma, Yan; Trubetskaya, Anna; Pettersen, Johan Berg; Tangstad, Merete (Peer reviewed; Journal article, 2022)
      Renewable reductants are intended to significantly reduce CO2 emissions from ferro-alloy production, e.g., by up to 80% in 2050 in Norway. However, charcoals provide inferior properties compared to fossil fuel-based ...

    • 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 from Liquid Silicomanganese Alloys Exposed to Atmospheres Containing Moisture 

      Ma, Yan; moosavi-khoonsari, Elmira; Myklebust, Håkon A Hartvedt Olsen; Tranell, Gabriella (Peer reviewed; Journal article, 2022)
      In industrial applications and laboratory studies, it has been shown that the use of water spray may significantly reduce the amount of fume generated from the oxidation process of liquid high carbon ferromanganese alloy. ...

    • 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 ...