Sökning: "decarburization"

Visar resultat 1 - 5 av 8 uppsatser innehållade ordet decarburization.

  1. 1. Characterization of phases in Argon Oxygen Decarburization slag

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Emil Rosqvist; Theodore Vassi; [2021]
    Nyckelord :;

    Sammanfattning : Slag is an important part of steelmaking with the AOD (Argon Oxygen Decarburization) process. In this work the focus was on developing a methodology for characterizing phases in slagsamples obtained after decarburization, reduction and desulphurization. LÄS MER

  3. 2. From Bloomery Furnace to Blast Furnace : Archeometallurgical Analysis of Medieval Iron Objects From Sigtuna and Lapphyttan, Sverige

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Andreas Helén; Andreas Pettersson; [2019]
    Nyckelord :;

    Sammanfattning : During the Early Middle Ages, the iron production in Sweden depended on the bloomery furnace, which up to that point was well established as the only way to produce iron. Around the Late Middle Ages, the blast furnace was introduced in Sweden. LÄS MER

  4. 3. Quenching and tempering hardness response of front axle steel beams : Different material properties during quenching and tempering

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Simon Zemui; [2017]
    Nyckelord :Axle steel beams; hardness; Quenching; tempering;

    Sammanfattning : The aim of this thesis was to investigate what the relation is between as-quench hardness and final surface hardness for steel beams is, depending on what tempering temperature is used. Also explain how chemistry, dimension and microstructure effects the final mechanical properties of the front axle beam. LÄS MER

  5. 4. Parameters affecting dephosphorization of stainless steel

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Erik Wendel; Axel Andersson; [2015]
    Nyckelord :dephosphorization; stainless steel;

    Sammanfattning : A literary study has been made to find parameters affecting dephosphorization of stainless steel. Ways to lower phosphorus content without major loss of chromium in order to decrease the production costs of Sandvik AB’s stainless steel. LÄS MER

  7. 5. Reduction of hydrogen embrittlement on Electrogalvanized Ultra High Strength Steels

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för kemi - Ångström

    Författare :Adam Haglund; [2014]
    Nyckelord :hydrogen embrittlement; electrogalvanized; ultra-high strength steel; martensite; vacuum evaporation; decarburization; hydrogen relief treatment; väteförsprödning; elförzinkning; ultrahöghållfast stål; martensit; vakuumförångning; ytavkolning; väteutdrivning;

    Sammanfattning : Ultra-high strength steels is known to be susceptible for hydrogen embrittlement at very low concentrations of hydrogen. In this thesis three methods to prevent or reduce the hydrogen embrittlement in martensitic steel, with tensile strength of 1500 MPa, were studied. LÄS MER