Sökning: "grain growth"

Visar resultat 1 - 5 av 100 uppsatser innehållade orden grain growth.

  1. 1. The effect of recycling and processing routes on recrystallization in a secondary 3xxx aluminium alloy

    Master-uppsats, Jönköping University/JTH, Material och tillverkning

    Författare :Anton Rolseth; [2023]
    Nyckelord :Aluminium alloys; sheet metal forming; grain boundary segregation; recrystallization; Zener pinning; casting; rolling;

    Sammanfattning : Aluminium alloys have the possibility to be infinitely recycled. By only generating 5% of the emissions compared to primary aluminium, great CO2 savings can be made. One of the issues in manufacturing components entirely from post-consumer scrap is the presence of trace elements and impurities. Such elements can be Fe, Cu, Cr, P and Pb. LÄS MER

  3. 2. Investigation of the Microstructure of Plastically Deformed Cemented Carbide

    Master-uppsats, KTH/Materialvetenskap

    Författare :Felicia Larsson; [2023]
    Nyckelord :;

    Sammanfattning : During machining operation, cemented carbide tools are exposed to high loads and temperatures, which eventually leads to plastic deformation of the tool material. The aim of this work was to investigate if the microstructures of creep deformed micro grain cemented carbides can be linked to alloying elements and mechanical properties. LÄS MER

  4. 3. Upplevda risker och riskhantering hos svenska lantbruksföretag : en kvalitativ intervjustudie om spannmåls- och grönsaksproducenters upplevda risker, riskhanteringsprocess och support

    Kandidat-uppsats, SLU/Dept. of Biosystems and Technology (from 130101)

    Författare :Emil Hermansson; Oskar Olsson; [2023]
    Nyckelord :Risk; riskhantering; riskhanteringsprocess; support; rådgivning; spannmålsproducenter; grönsaksproducenter;

    Sammanfattning : Det svenska lantbruket har under de senaste åren utsatts för flera utmaningar. Torka, en pandemi och krig är inget som den svenska lantbrukarkåren har någon inverkan på men påverkan mot företagen blir stor. LÄS MER

  5. 4. Effect of different food by-products on Tenebrio molitor growth and development in an industrial environment

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Anton Laggar Andreasson; [2023]
    Nyckelord :Tenebrio molitor; yellow mealworm; growth; development; industrial farming; wet feed; dry feed; by-products; insects; insects as food and feed; maturation; pupation;

    Sammanfattning : Due to an increasing need for high-quality protein around the world, eyes are turning towards alternative methods of farming, such as insect farms. As insects can eat what humans cannot, e.g. food by-products, they can be a part of sustainable food systems. LÄS MER

  7. 5. Numerical Modelling of a Packed Bed Thermal Energy Storage for Applications in a Carnot Battery : KTH Thesis Report

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Gabriel Juul; [2023]
    Nyckelord :Thermal energy storage; Carnot battery; sand; packed bed; granular medium; porous medium; effective medium technique; effective thermal conductivity; paramedic study; 3D model; COMSOL; numerical modelling; Lagring av värmeenergi; Carnot-batteri; sand; packad bädd; granulärt medium; poröst medium; effektiv mediumteknik; effektiv värmeledningsförmåga; parametrisk studie; 3D-modell; COMSOL; numerisk modellering;

    Sammanfattning : This thesis explores the heat transfer characteristics of a packed bed thermal energy storage device through the development of a 3D model in COMSOL Multiphysics. The model is based on a laboratory-scale device consisting of an aluminum box filled with sand, which acts as the thermal storage medium. LÄS MER