Search for dissertations about: "EAF"

Showing result 1 - 5 of 30 swedish dissertations containing the word EAF.

  2. 1. A Study of EAF Austenitic and Duplex Stainless Steelmaking Slags Characteristics

    Author : Saman Mostafaee; Margareta Andersson; Pär Jönsson; Nzotta Mselly; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; EAF; Slag; Duplex steel; 304L stainless steel; Characterization; Microstructural evolution; Spinels; Basicity; Computational thermodynamics; Slag foaming; Metallurgical process and manufacturing engineering; Metallurgisk process- och produktionsteknik;

    Abstract : The high temperature microstructure of the solid phases within the electric arc furnace (EAF) slag has a large effect on the process features such as foamability of the slag, chromium recovery, consumption of the ferroalloys and the wear rate of the refractory. The knowledge of the microstructural and compositional evolution of the slag phases during the EAF process stages is necessary for a good slag praxis. READ MORE

  4. 2. A Study of EAF High-Chromium Stainless Steelmaking Slags Characteristics and Foamability

    Author : Saman Mostafaee; Pär Jönsson; Margareta Andersson; Malin Selleby; Lauri Holappa; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; High-chromium stainless steel; EAF; Slag; Microstructural characterization; Microstructural Evolution; Computational thermodynamics; Solid particles; Viscosity; Foamability; Basicity; Metallurgical process engineering; Metallurgisk processteknik;

    Abstract : A good slag practice is essential for production of a high-quality stainless steel. In addition, the electrical and material efficiency of the electric arc furnace (EAF) can considerably be improved by a good slag practice. The metallurgical properties of the slag are strongly influenced by its high-temperature microstructure. READ MORE

  5. 3. Energy and environmental optimization of some aspects of EAF practice with novel process solutions

    Author : Andrei Chychko; Seshadri Seetharaman; Lidong Teng; Shouyi Sun; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Molybdates; slag foaming; steel alloying; EAF; carbonate decomposition; Materials science; Teknisk materialvetenskap;

    Abstract : The objective of the present thesis is to optimize the electric arc furnace (EAF) practice from an environmental view point. Two aspects that meet the requirements of the secondary steelmaking industries today, viz. READ MORE

  6. 4. Viscosities of complex slags and the impact of the same on foaming in EAF

    Author : Branka Vidacak; KTH; []
    Keywords : Slag; Viscosity; EAF; Stainless steel; Slag foaming;

    Abstract : .... READ MORE

  7. 5. Enhanced phosphorus removal from wastewater using virgin and modified slags : performance, speciation and mechanisms

    Author : Minyu Zuo; Gunno Renman; Jon Petter Gustafsson; Lars Lövgren; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; AOD; EAF; BFS; Calcium phosphate; XANES; slag mineralogy; Mark- och vattenteknik; Land and Water Resources Engineering;

    Abstract : Argon oxygen decarburization slag (AOD) was tested in batch and column experiments to investigate its phosphorus (P) removal performance. The effects of factors such as AOD dose, initial P concentration of the feeding solution, and aging on the P removal ability of the slags were analyzed. READ MORE