Sökning: "Duplex steel"

Visar resultat 21 - 25 av 56 avhandlingar innehållade orden Duplex steel.

  1. 21. Residual Stresses and Fatigue in a Duplex Stainless Steel

    Författare :Johan Moverare; Linköpings universitet; []
    Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : Duplex stainless steels, consisting of approximately equal amounts of austenite and ferrite, often combine the best features of austenitic and ferritic stainless steels. They generally have good mechanical properties, including high strength and ductility, and the corrosion resistance is often better than conventional austenitic grades. LÄS MER

  3. 22. Microstructure and properties of modern P/M super duplex stainless steels

    Författare :Olena Smuk; KTH; []
    Nyckelord :duplex stainless steel; powder metallurty; hot isostatic pressing; secondary phase;

    Sammanfattning : .... LÄS MER

  4. 23. Very high cycle fatigue of duplex stainless steels and stress intensity calculations

    Författare :Muhammad Waqas Tofique; Jens Bergström; Nils Hallbäck; Anders Gåård; Johan Moverare; Karlstads universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Very high cycle fatigue; duplex stainless steel; ultrasonic fatigue testing; distributed dislocation dipole technique; Materialteknik; Materials Engineering;

    Sammanfattning : Very high cycle fatigue (VHCF) is generally considered as the domain of fatigue lifetime beyond 10 million (107) load cycles. Few examples of structural components which are subjected to 107-109 load cycles during their service life are engine parts, turbine disks, railway axles and load-carrying parts of automobiles. LÄS MER

  5. 24. Corrosion Behavior of Duplex Stainless Steels in Acidic-Chloride Solutions Studied with Micrometer Resolution

    Författare :Marc Femenia; KTH; []
    Nyckelord :In situ; local dissolution; STM; SKPFM; MFM; SAES; duplex stainless steel; acidic-chloride solution;

    Sammanfattning : The local corrosion behavior of duplex stainless steel (DSS)is affected by a wide variety of factors. Localized corrosionof DSS frequently starts at micrometer scale inclusions orprecipitates, which are often segregated in theaustenite-ferrite boundary regions. LÄS MER

  7. 25. Stainless Steel Corrugated Web Girders for Composite Road Bridges: Concept Evaluation and Flange Buckling Resistance

    Författare :Fatima Hlal; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Investment cost; Genetic algorithm; Duplex stainless steel; LCC; Corrugated web; Flange buckling resistance; Optimization; Composite bridges; LCA; Road bridges;

    Sammanfattning : Achieving a sustainable bridge design requires careful consideration of economic viability and environmental impact over the entire lifespan of the structure. While stainless steel is recognized for its excellent life cycle performance, its high cost prevents it from being used to a larger extent in bridges. LÄS MER