Sökning: "hårdhet"

Visar resultat 21 - 25 av 116 uppsatser innehållade ordet hårdhet.

  1. 21. Understanding Effects of Isothermal Heat Treatments on Microstructure of LMD-w Titanium Alloy (Ti-6242) : On solution heat treated microstructure

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Noomi Linder; [2020]
    Nyckelord :Heat Treatments Isothermal Titanium Alloy Ti-6242 Ti6242 Ti-6Al-2Sn-4Zr-2Mo GKN;

    Sammanfattning : The use and knowledge of additive manufacturing technologies are rapidly growing. It is crucial to understand the processing-structure-property relationship, which is highly discussed when trying to understand the science of a material. One commonly used material in aerospace applications is titanium alloy, lately Ti-6Al-2Sn-4Zr-2Mo (Ti-6242). LÄS MER

  3. 22. Reliable Carburization of AISI H13 Steel : The Impact of Preoxidation

    Master-uppsats, KTH/Materialvetenskap

    Författare :Martin Palm; [2020]
    Nyckelord :Preoxidation; Case hardening; Uddeholm Orvar® Superior; Passive oxide layers; Iron oxides; Carbon adsorption;

    Sammanfattning : Case hardened Uddeholm Orvar® Superior (Orvar) has the potential to replace currently used materials in shafts inside transmissions, which would lower the overall weight and thus result in lower fuel consumption while maintaining the necessary mechanical properties. However, previous studies have failed to reliably carburize the steel during the case hardening process. LÄS MER

  4. 23. Evaluation of Peridynamics and Its Application in Harmonic-Structured Material Simulations

    Master-uppsats, Lunds universitet/Mekanik

    Författare :Theodor de Sousa; [2020]
    Nyckelord :peridynamics; peridigm; harmonic-structured materials; computational mechanics; fracture modelling; Technology and Engineering;

    Sammanfattning : Materials are constantly sought to be improved in different manners. Two of the most common characteristics to improve are strength, and ductility. Historically, materials are modified homogeneously to achieve improvement, while the past century has also seen composite materials becoming standard-issue within various industries. LÄS MER

  5. 24. Technical Possibilities of Wastewater Reclamation for Potable Use in Hurva, Scania : Regarding the Waterbalance and From a Process Technical Point of View

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Esmeralda Frihammar; [2020]
    Nyckelord :Potable Wastewater Reclamation; Re-use; VA SYD; WWTP; DWTP; Återanvändning; avloppsvatten; cirkulära vattensystem; dricksvattenverk; reningsverk; VA SYD;

    Sammanfattning : During recent years both Sweden and the rest of Europe have experienced periods of drought as a consequence of hot summers with low levels of precipitation. For villages provided with drinking water from water plants with groundwater as raw water source droughts can lead to considerable problems if the groundwater reservoir would be affected. LÄS MER

  7. 25. En konvex och konkav vy : En kvalitativ studie av ciselering med olika metallfolier

    Uppsats för yrkesexamina på avancerad nivå, Konstfack/IBIS - Institutionen för bild- och slöjdpedagogik

    Författare :Eleni-Jane Coucouravas; [2020]
    Nyckelord :Ciselering; metallfolie; experiment; erfarenheter; hantverkskunnande; slöjd.;

    Sammanfattning : Syftet med denna studie är att undersöka hantverkskunnandet och metallens egenskaper vidarbetet med ciseleringsteknik på olika metallfolier. Genom studien besvaras frågorna: Hursvarar de olika metallfolier när de ciseleras? Hur ser hantverkskunnandet i ciselering ut?Studien kan beskrivas som en kvalitativ undersökning med inspiration av den experimenterandemetoden samt autoetnografiska metoden. LÄS MER