Sökning: "Duplex Stainless steels"
Visar resultat 1 - 5 av 21 uppsatser innehållade orden Duplex Stainless steels.
1. 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
2. Low temperature embrittlement of duplex stainless steels : A study of alloying elements’ effect
Master-uppsats, KTH/MaterialvetenskapSammanfattning : Duplex stainless steels (DSSs), consisting of an equal amount of ferrite and austenite phases, have wide applications in e.g. vehicles, chemical engineering as well as nuclear plant because of the combination of excellent mechanical properties and corrosion resistance. LÄS MER
3. Regulation of Nitrogen Content in High Alloyed Stainless Steels during the AOD Process
Kandidat-uppsats, KTH/MaterialvetenskapSammanfattning : As a final step in the argon oxygen decarburisation (AOD) process, argon- and nitrogen gas is blown through the melt. To regulate the nitrogen content in the steel melt during this step a reliable model is needed. LÄS MER
4. Evaluation of current welding robot and improvement proposals for future use
Master-uppsats, KTH/Marina systemSammanfattning : Welding of elements, a heat exchanging component, is one of the most essential processes during the manufacturing of Tubel evaporators. Weld joints consists of fillet welds of thin tubes against a plate on one end, and on the other end against a thicker pipe with entry holes for the tubes. LÄS MER
5. Deformation-Induced Martensitic Transformation and Mechanical Properties of Duplex and Austenitic Stainless Steels : A Synchrotron X-Ray Diffraction Study
Master-uppsats, KTH/MetallografiSammanfattning : Metastable austenitic and duplex stainless steels are widely used materials in industrial anddomestic applications, owing to their attractive characteristics such as good corrosion resistanceand favorable mechanical properties. Both types of steel experience enhanced mechanicalproperties during plastic deformation due to the formation of the martensite phase from theparent austenite phase, this is called deformation-induced martensitic transformation (DIMT). LÄS MER