Sökning: "steel corrosion"

Visar resultat 11 - 15 av 127 uppsatser innehållade orden steel corrosion.

  1. 11. Inledande utvärdering av epoxibaserad livstidsförlängning av fjärrvärmerör : Relining av kolstål med en polyamidhärdande lösningsmedelsfri epoxi

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för kemi - Ångström

    Författare :Jennifer Andersson; [2022]
    Nyckelord :Relining; Epoxy; District heating; Corrosion; BPA; Glass-transition temperature; Relining; Rörinfodring; Fjärrvärmesystem; Livstidsförlängning; Korrosion; Rost; Epoxi; BPA; Tvärbundna polymerer; Sorption; Diffusion; Glasomvandlingstemperatur; Joniska transportvägar; Friktionsfaktor;

    Sammanfattning : Degradation of steel pipes in district heating systems is often a result of corrosion processes. To maintain the power in the systems the pipes gets replaced when they have been worn-out, resulting in high cost and long service time due to excavation. LÄS MER

  3. 12. Mechanical design guidelines and criteria for mooring components in wave energy devices : Finding the optimum chain and shackle parameters

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad mekanik

    Författare :Arvin Modiri; [2022]
    Nyckelord :Chain; shackle; finite element method; wave energy converter; WEC; Kedja; kätting; schackel; finita element metoden; vågkraftverk;

    Sammanfattning : Obtaining the perfect renewable energy source is one of the most important questions of our lifetime. One renewable energy source that could be of interest in this question because of the characteristics of the power that could be extracted from it is wave energy. LÄS MER

  4. 13. Optimization of hot strip drawing test methodology for hot forming of aluminium alloys

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Rabia Arshad; [2022]
    Nyckelord :Hot forming of aluminium; friction; high temperature lubrication; strip draw; wear.;

    Sammanfattning : The development of lightweight design for automotive applications has lasted for many years and is still increasing. Vehicles with light structures use less fuel, emit less CO2, and are better for the environment. LÄS MER

  5. 14. CFD Results Used in the Design Process of the SEFACE Facility : KTH Master's Thesis Report

    Master-uppsats, KTH/Kärnenergiteknik

    Författare :Nathaniel Torkelson; [2022]
    Nyckelord :CFD; liquid lead corrosion; flow accelerated corrosion erosion; SEFACE; SUNRISE; ANSYS CFX; CFD; flytande blykorrosion; flödesaccelererad korrosionserosion; SEFACE; SUNRISE; ANSYS CFX;

    Sammanfattning : This project uses CFD analysis to make design choices for a facility to test flow accelerated lead corrosion erosion of steel samples. Two conceptual designs are considered and compared through mechanical and physical criteria. The first design uses steel samples on stationary plates next to rotating discs. LÄS MER

  7. 15. Precipitation behavior of the super austenitic stainless steel SANICRO® 35 and the effect on impact toughness and pitting corrosion resistance

    Master-uppsats, KTH/Materialvetenskap

    Författare :Shunyi Li; [2022]
    Nyckelord :Super austenitic stainless steel; solid phase transformation; TTT diagram; impact toughness; critical pitting temperature; TC PRISMA simulation; Superaustenitiskt rostfritt stål; fastfasomvandling; TTT-diagram; slaghållfasthet; kritisk punktfrätningstemperatur; TC PRISMA simulering;

    Sammanfattning : This research extended the knowledge of the solid phase transformation and the resulting influence on impact toughness and pitting corrosion resistance in super austenitic stainless steel (SASS) SANICRO® 35. A time-temperature-transformation diagram (TTT diagram) was assembled by performing isothermal heat treatments in the temperature range of 650-1050 °C for different periods of time, ranging from 5 min to 500 min. LÄS MER