Sökning: "elektrolytisk extraktion"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden elektrolytisk extraktion.

  1. 1. Characterisation of Non-metallic Inclusions in Special Steels using Electrolytic Extraction

    Master-uppsats, KTH/Materialvetenskap

    Författare :Josefin Mvele Svensson; [2024]
    Nyckelord :Non-metallic inclusions; electrolytic extraction; SEM; Icke-metalliska inneslutningar; elektrolytisk extraktion; SEM;

    Sammanfattning : When producing high strength special steels strict requirements are in place to assure the quality of the final product, both in terms of harmful elements and  the  content  of  non-metallic  inclusions  (NMI).  Achieving  cleanliness  is a  gradual  process  where all  the  steps  of  the  production  process  are  inter- connected, meaning that it is crucial to know the influence of each step in order to assure the contents of the final product. LÄS MER

  3. 2. Investigations of Large Size Non-Metallic Inclusions in the Nickel-based alloy Inconel 718

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Yuehui Ma; Wardah Saleem; [2022]
    Nyckelord :;

    Sammanfattning : Inclusions of different types are present in all steels. How dangerous these are for the properties of the material depends on their chemical composition and the manufacturing process. LÄS MER

  4. 3. Evaluation of different non-metallic inclusions in steel chips by using electrolytic extraction : Evaluation of a methodology for electrolytic extraction and scanning electron microscopy - energy dispersive spectroscopy (SEM-EDS) analysis

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Niklas Jespersson; Torbjörn Sandberg; [2021]
    Nyckelord :;

    Sammanfattning : Analysing non-metallic inclusions (NMI) by conventional microscopy is prone to errors.  Better imaging can be achieved by using electrolytic extraction (EE) to effectively dissolve the metal matrix, freeing the inclusions so that they can be collected on a filter. LÄS MER

  5. 4. Evaluation of the Effect of Non-Metallic Inclusions on the Corrosion Resistance of Stainless Steels and Nickel-based Alloys

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Emil Brisenmark; Jane Jönsson Valencik; [2020]
    Nyckelord :;

    Sammanfattning : Non-metallic inclusions (NMI) are small impurities that can always be found in steel and other materials. NMIs are of great importance because they may negatively impact various properties of the steel, depending on their composition, morphology and numbers. LÄS MER

  7. 5. Electrolytic Extraction of Aluminium Bifilms

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Simon Bergfors; Davida Flink; [2020]
    Nyckelord :Aluminium; Bifilms; Oxide films; Electrolytic extraction; Scanning electron microscope; Aluminium; Oxidfilm; Elektrolytisk extraktion; Svepelektronmikroskop;

    Sammanfattning : Bifilms is the oxide layer created between two surfaces in the melt of light metals that form an oxide layer. These become planar inclusions in the final casting and are problematic for the mechanical properties such as cracks and crack initiations. LÄS MER