Essays about: "duplex stainless steel"

Showing result 1 - 5 of 29 essays containing the words duplex stainless steel.

  1. 1. Transportation of hydrogen : A comprehensive analysis of the cost of different methods of transportation of hydrogen

    University essay from KTH/Materialvetenskap

    Author : Stina Gardesten; Julius Modin; [2023]
    Keywords : Hydrogen; Energy transportation; pipeline; gas tube; gas tank; Morocco; Väte; energitransport; pipeline; gastub; gastank; Marocko;

    Abstract : Today, the world faces an energy source transformation that is difficult to grasp. To convert to a green energy society, carbon, oil, and natural gas must faze out as fuels during the upcoming decades. READ MORE

  3. 2. Fracture analysis of tensile- and fatigue failure for perforated and wedge wire structures

    University essay from

    Author : David Barjosef; Alexander Austen Öhrn; [2022]
    Keywords : ;

    Abstract : In the effort to produce more durable filters and understand their mechanical failure, this study presents distinctive indicators on the cause of failure for welded perforated- and wedge wire sheets in 316L stainless steel, super duplex UR52N stainless steel and grade 2 titanium. The study achieves this by fracture analysis on specimens from tensile strength- and fatigue testing. READ MORE

  4. 3. Microstructural characterization of quench annealed duplex SAF 2507 utilizing EBSD

    University essay from Uppsala universitet/Tillämpad materialvetenskap

    Author : Simon Beyermann; [2022]
    Keywords : sigma phase; chi phase; electron backscatter diffraction; super duplex stainless steel; recrystallization; SAF 2507 UNS S32750 .;

    Abstract : Producing large bars of duplex stainless steel free from precipitated embrittling phases isdifficult due to the many factors that influence precipitation. Research shows that intermetallicslike sigma and chi deteriorate principal material properties for the main application areas. READ MORE

  5. 4. Machine learning for the prediction of duplex stainless steel mechanical properties : Hardness evolution under low temperature aging

    University essay from KTH/Materialvetenskap

    Author : Baptiste Giard; Sofia Karlsson; [2021]
    Keywords : Duplex Stainless Steel DSS; Machine Learning; Phase Separation; Me- chanical Properties; Alloying; Duplexa rostfria stål; Maskininlärning; Fasseparation; Mekaniska Egenskaper; Legering;

    Abstract : Duplex stainless steels, DSS are stainless steels that consist of the two phases austenite and ferrite.  The DSS have superb properties and are widely used in industries such as nuclear power and in pressure vessels, pipes and in pipelines.  The use of DSS are limited due to embrittlement which occurs at temperatures from 250 to 550 oC. READ MORE

  6. 5. Sample quality effects of laser cutting : An empirical study on the heat affected zone and the surface quality in laser cut samples

    University essay from KTH/Materialvetenskap

    Author : Emma Bevin; Matilda Björklund; [2020]
    Keywords : Laser cutting; Laser cutting quality; Heat affected zone; Surface quality; Surface angularity; Laserskärning; Laserskärnings-kvalité; Värmepåverkad zon; Ytkvalité; Ytvinkel;

    Abstract : This study has been conducted with the aim to examine the extent of the heat affected zone in order to use laser cutting when making samples for tensile testing. When cutting with a laser the material absorbs heat energy from the laser beams which causes changes in the microstructure. READ MORE