Sökning: "ferritic stainless steel"

Visar resultat 1 - 5 av 48 avhandlingar innehållade orden ferritic stainless steel.

  1. 1. Plastic Deformation of Duplex Stainless Steel

    Författare :Magnus Nyström; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; stainless steel; microstructure; plastic zones; impact toughness; anisotropy; prestraining; annealing; fractography; fatigue;

    Sammanfattning : Duplex austenitic/ferritic stainless steels are increasingly used as an alternative to conventional austenitic grades. Main advantages of the duplex grades are good resistance to corrosion cracking and corrosion fatigue in environments that contain chloride. LÄS MER

  3. 2. Additive Manufacturing of Ferritic Materials : A Journey from Stainless Steels to High-Entropy Alloys

    Författare :Dennis Karlsson; Ulf Jansson; Martin Sahlberg; Eduard Hryha; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Additive Manufacturing; Laser Powder Bed Fusion; Binder Jetting; Ferritic Stainless Steel; High Entropy Alloy; Mechanical Properties;

    Sammanfattning : Design of new materials with complex geometries is an important part of new innovative solutions for technical applications. With the use of additive manufacturing (AM), the design possibilities are endless and geometries that are impossible to manufacture by conventional techniques are available. LÄS MER

  4. 3. Inclusions and/or Particles Engineering for Grain Refining Purposes in Ferritic Fe-20mass%Cr alloys

    Författare :Jesper Janis; Pär Jönsson; Keiji Nakajima; Lauri Holappa; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Inclusions; Particles; Grain size; High Cr; Ferritic; Grain refining; Solidification; Pinning effect; Stainless steel; Oxides; Nitrides; Metallurgical process engineering; Metallurgisk processteknik;

    Sammanfattning : Compared to more common used austenitic stainless steels, ferritic stainless steels contain very low amounts of the expensive alloying element Ni. In addition, they have good corrosion properties, but are sometimes suffering from poor weldability and bad mechanical properties. LÄS MER

  5. 4. Modeling of the Stainless Steel Tube Extrusion Process

    Författare :Sofia Hansson; Erman Tekkaya; Högskolan Dalarna; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Extrusion; FEM; Stainless steel; Tube; Simulering av extrusion av rostfria rör; Material Mechanics;

    Sammanfattning : Seamless tubes of stainless steel can be extruded using glass as a lubricant in the Ugine-Sejournet process. The process is performed at high temperature and is associated with large deformations and high strain rates. LÄS MER

  7. 5. High Temperature Corrosion of Cast Irons and Steels

    Författare :Frédéric Tholence; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; high temperature corrosion; cast steel; austenitic stainless steel; SiMo; cast iron; oxidation; exhaust gases; Ni-resist; LCF; ferritic stainless steel;

    Sammanfattning : During the last decades, tougher competition and stiffer government policies have forced the automotive industry into a race for safer, cleaner and more fuel-efficient vehicles at low cost. As a consequence, exhaust systems should resist to increased working temperatures. LÄS MER