Essays about: "Vickers hårdhet"

Found 4 essays containing the words Vickers hårdhet.

  1. 1. Irradiation Embrittlement on a Core Shroud from Decommissioned BWR

    University essay from KTH/Fysik

    Author : Åsa Bjåland; [2023]
    Keywords : hardness; Vickers hardness test; ATT; yield strength; irradiation embrittlement; welds; hårdhet; Vickers hårdhetstest; ATT; sträckgräns; bestrålningsförsprödning; svetsar;

    Abstract : Irradiation embrittlement is a problematic issue for internal structures, such as acore shroud, in a light water reactor. It is characterized by decreased ductility andtoughness, and increased yield strength and hardening due to increased dislocations. READ MORE

  3. 2. Evaluation of material properties after laser welding on ductile cast iron

    University essay from KTH/Materialvetenskap

    Author : Olivia Taivalkoski; [2019]
    Keywords : Laser welding; ductile cast iron;

    Abstract : Scania wants to lower the weight of their trucks, including the goal to reduce the carbon dioxide emissions, and one way to do that is to use laser welding instead of fastenings.This bachelor thesis work is about laser welding of ductile cast iron, or spheroidal graphite cast iron or nodular cast iron, to QT-steels and case hardening steel and evaluation of the mechanical properties of the weld. READ MORE

  4. 3. Examination of Ancient Scandinavian Archaeological Findings : From Tortuna in Västerås, Sweden

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Jacob Blinke; Evelynne Geiger; Amanda Edlund; [2018]
    Keywords : Forging; microstructure; steel manufacturing; Iron Ages; bloomery furnace; amulet rings; edge tools; horse cleat; Vickers hardness; Smide; mikrostruktur; ståltillverkning; järnåldern; blästerugn; amulettringar; eggverktyg; hästbrodd; Vickers hårdhet;

    Abstract : This study concerns the examinations of archaeological steel-objects from the Iron Ages, found in Tortuna outside Västerås, Sweden. Not many metallurgical analyses have been made on steel objects from the Iron Ages, most likely in order to preserve the findings. Therefore, very little knowledge about old steel materials exists. READ MORE

  5. 4. Thermal barrier coatings for diesel engine exhaust applications

    University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Author : Christoffer Blomqvist; [2014]
    Keywords : TBC; thermal barrier coatings; APS; mullite; YSZ;

    Abstract : The strive to increase the engine efficiency in terms of fuel consumption and lower emissions have lead to higher demands on materials. In this thesis five different thermal barrier coatings applied using air plasma spraying to three materials commonly used for exhaust application are evaluated. READ MORE