Sökning: "Non-metallic Inclusions"

Visar resultat 1 - 5 av 32 uppsatser innehållade orden Non-metallic Inclusions.

  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. Image analysis of Light Optical Microscopy (LOM) images of metallurgical samples

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :David Håkansson; [2023]
    Nyckelord :;

    Sammanfattning : Processing metals in different ways often requires stringent quality control to ensure the quality of the processed metal. This master's thesis aims to develop methods for evaluating the quality of metals via image analysis rather than inspecting images manually as it traditionally has been done. LÄS MER

  4. 3. Optical Emission Spectroscopy Pulse Distribution Analysis on Steel Production Samples : Accuracy, sample variation, spread in different samples and steel grades/routes

    Master-uppsats, KTH/Materialvetenskap

    Författare :Paulo Urrea Molina; [2023]
    Nyckelord :;

    Sammanfattning : This thesis work aimed to contribute to the development of online characterization techniques for non-metallic inclusions in steelmaking. The study focused on assessing the precision and accuracy of the optical emission spectroscopy pulse distribution analysis (OES/PDA) technique using asreference light optical microscope (LOM) and scanning electron microscope(SEM). LÄS MER

  5. 4. Investigations of Tool Wear Mechanisms in the Turning of Conventional, Calcium Treated and Ultraclean Steels

    Master-uppsats, KTH/Materialvetenskap

    Författare :Milou Göransson; [2023]
    Nyckelord :Clean steel; Ultraclean steel; Longitudinal turning; Cemented carbide cutting tool; Chemical vapor deposition coating; Machinability; Tool wear; Non-metallic inclusions; Rent stål; Ultrarent stål; Längdsvarvning; Hårdmetall skärverktyg; Kemisk ångdeponering beläggning; Bearbetningsbarhet; Verktygsslitage; Icke-metalliska inneslutningar.;

    Sammanfattning : Application of clean and ultraclean steels have shown to provide favourable mechanical properties for bearings and transmission components, specifically regarding fatigue performance, compared to conventional steel grades. Clean steels are characterized by containing a very low level of non-metallic inclusions. LÄS MER

  7. 5. Investigation of non-metallic inclusions and chip properties in Cu-based alloys by numerical analysis

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Ousmane El Hamid; Mattias Eriksson; [2022]
    Nyckelord :;

    Sammanfattning : Analysis of the macrostructure of metallic alloys is of utmost importance as there is a direct correlation on the physical properties and some features of the structures. This is true for copper based alloys and the non-metallic inclusions (NMI) that are enclosed in their structure. LÄS MER