Sökning: "Ferritic stainless steel"

Visar resultat 1 - 5 av 16 uppsatser innehållade orden Ferritic stainless steel.

  1. 1. The Effect of Process Parameters on Columnar-To-Equiaxed-Transition (CET) During Electron Beam-Powder Bed Fusion of Ferritic Stainless Steel

    Master-uppsats, KTH/Materialvetenskap

    Författare :Doom Eleanor Ihensekhien; [2022]
    Nyckelord :Additive manufacturing; E-PBM; Inoculation; process parameters; TiN; CET;

    Sammanfattning : Electron Beam Powder Bed Fusion manufacturing of components is an additive manufacturing process that is complex and has widespread advantages for aerospace and many industrial processes. It reduces costs and has a larger powder particle size requirement. LÄS MER

  3. 2. Long term aging and creep exposure for advanced heat resistant alloys : A phase analysis

    Kandidat-uppsats, Uppsala universitet/Institutionen för materialvetenskap; Uppsala universitet/Institutionen för kemi - Ångström

    Författare :Daniel Lundberg; Filip Wilson; Hjalmar Gunnarsson; Leo Sjörén; Robin Xu; Erik Djurberg; [2021]
    Nyckelord :Austenitic stainless steel; ferritic steels; nickel based alloys; creep; ageing; XRD; SEM EDS; LOM;

    Sammanfattning : This project was ordered by Sandvik Materials Technology and was performed by a group of students at Uppsala university. The purpose of the project was to study precipitation behavior and structure stability in six advanced heat resistant alloys. Each sample were subjected to a creep rupture test in 600 or 700°C depending on the alloy type. LÄS MER

  4. 3. FE-model for prediction of welding distortions in components made of preformed stainless steel sheets

    Master-uppsats, KTH/Hållfasthetslära

    Författare :Tom Glansholm; [2020]
    Nyckelord :Welding simulation; distortions; Ferritic stainless steel; EN1.4509; FEM; Solid mechanics; Residual stresses; Svetssimulering; deformationer; restspänningar; Ferritiskt rostfritt stål; EN1.4509; Finita elementmetoden; Hållfasthetslära;

    Sammanfattning : This master thesis was carried out at Scania CV AB. The focus for this thesis is the prediction of welding distortions that can cause problems in the manufacturing process of Scania's after-treatment system. The after-treatment system is mainly assembled by sheet metal plates of the ferritic stainless steel EN 1.4509. LÄS MER

  5. 4. Improved interconnect materials for next-generation Solid Oxide Fuel Cells

    Master-uppsats, KTH/Materialvetenskap

    Författare :Pablo Collantes; [2019]
    Nyckelord :Solid Oxide Fuel Cells; High Temperature Corrosion; Self-healing; Interconnects;

    Sammanfattning : Solid Oxide Fuel Cells (SOFC) are attractive candidates in the search for cleaner and energy efficient production due to their numerous advantages such as fuel flexibility, modularity and exceptional efficiencies when combined heat and power is harnessed. A key element in its design are the interconnects which are mainly manufactured from custom ferritic stainless steels to carry the electricity between two adjacent cells. LÄS MER

  7. 5. Sliding wear performance of electroplated hard chromium and autocatalytic nickel-phosphorus coatings at elevated temperatures

    Master-uppsats, Karlstads universitet/Avdelningen för maskin- och materialteknik

    Författare :Mats Eriksson; [2014]
    Nyckelord :Tribology; sliding wear; hard chrome; electroless nickel;

    Sammanfattning : This thesis was written for a Swedish valve manufacturer to find out in what temperature regimes it was possible to replace electroplated hard chromium with autocatalytic electroless nickel-phosphorus. In this work the dry sliding wear properties of electroplated hard chromium and autocatalytic electroless nickel-phosphorus(10% P) were compared. LÄS MER