Sökning: "coarsening"

Visar resultat 1 - 5 av 23 uppsatser innehållade ordet coarsening.

  1. 1. Microstructural design and optimization of Nickel-based superalloys for gas turbines

    Master-uppsats, KTH/Materialvetenskap

    Författare :Anirudh Vasishta; [2023]
    Nyckelord :Nickel- based superalloys; gamma prime γ′ size calculations; Nickelbaserade superlegeringar; gamma prime γ′ storleksberäkningar;

    Sammanfattning : One of the main sources of energy in this modern world is the gas turbine.  They reach extremely high working temperatures at peak capacity and hence require materials that can withstand the same. LÄS MER

  3. 2. Reconstructing Mid-Late Holocene Arctic Climate Using Loess Deposits From Kangerlussuaq, Greenland

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :William Mörtsjö Zung; [2023]
    Nyckelord :;

    Sammanfattning : The current geological epoch, the Holocene, began 11,700 years ago. During this time, a thermal maximum in temperature was reached somewhere during the early-middle stage at 8-5 kyrs ago which was followed by a period of neoglacial cooling, culminating in the little ice age (LIA). LÄS MER

  4. 3. Marine Geology and Holocene Paleoceanographyof the Southern Quark, Baltic Sea

    Master-uppsats, Stockholms universitet/Institutionen för geologiska vetenskaper

    Författare :Anton Wagner; [2022]
    Nyckelord :Bottom currents; Sortable silt; Radiocarbon dating; Baltic Sea stages; Estuarine circulation; Marine sediment cores; Marine geophysical mapping;

    Sammanfattning : The Understen-Märket trench is located in the Southern Quark and is the only deep-water connection between the Baltic Propper and the Gulf of Bothnia. Bathymetric mapping reveals a number of eroded channels and drift deposits exists on the seafloor, indicating that the area is heavily affected by current activity. LÄS MER

  5. 4. Aluminium Nitride-containing Steels for High-Temperature Low-Pressure Carburizing Processes

    Master-uppsats, KTH/Materialvetenskap

    Författare :Elias Nybacka Reiland; [2022]
    Nyckelord :;

    Sammanfattning : By increasing the temperature at which low-pressure carburizing is performed, the process time for production of case-hardened steels decrease but run a risk of abnormal grain growth occurring during carburizing. Particles present in the steel pin the grain boundaries and can prevent this growth depending on their size and volume fraction. LÄS MER

  7. 5. Modelling of precipitation in an Fe-C-Cr alloy

    Master-uppsats, KTH/Materialvetenskap

    Författare :Johan Frisk; [2019]
    Nyckelord :;

    Sammanfattning : Precipitation modelling is interesting from both an academic and an industrial point of view. Such modelling tools may be used in the field of integrated computational materials engineering (ICME) for design and optimization of material properties. LÄS MER