Sökning: "Duplex stainless steel"
Visar resultat 1 - 5 av 37 uppsatser innehållade orden Duplex stainless steel.
1. Styrning av svalningsförlopp vid släckglödgning av SAF2507
Master-uppsats, KTH/MaterialvetenskapSammanfattning : Duplexa stål är en typ av rostfria stål vars mikrostruktur består av två olika faser till lika andel, som används för att de har en mycket bra kombination av korrosionsmotstånd och mekaniska egenskaper. En viktig process vid tillverkning av duplexa stål är släckglödgning, där stålet värms och sedan snabbkyls kontrollerat för att erhålla önskade mekaniska och korrosions-beständiga egenskaper. LÄS MER
2. Transportation of hydrogen : A comprehensive analysis of the cost of different methods of transportation of hydrogen
Kandidat-uppsats, KTH/MaterialvetenskapSammanfattning : 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. LÄS MER
3. Fracture analysis of tensile- and fatigue failure for perforated and wedge wire structures
M1-uppsats,Sammanfattning : 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. LÄS MER
4. Microstructural characterization of quench annealed duplex SAF 2507 utilizing EBSD
Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad materialvetenskapSammanfattning : 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. LÄS MER
5. Machine learning for the prediction of duplex stainless steel mechanical properties : Hardness evolution under low temperature aging
Kandidat-uppsats, KTH/MaterialvetenskapSammanfattning : 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. LÄS MER