Sökning: "hot cracking"
Visar resultat 1 - 5 av 12 uppsatser innehållade orden hot cracking.
1. Fabricability of a high alloy tool steel produced with LPBF, with a focus on part geometry
Master-uppsats, Karlstads universitetSammanfattning : Additive manufacturing (AM) is a promising manufacturing process that provides that ability to fabricate components with complex geometries with relatively low lead times compared to other manufacturing processes. This allows for more freedom of design, as prototypes can easily be produced throughout the development process. LÄS MER
2. Erosion Behaviour of Thermal Barrier Coatings
Master-uppsats, Linköpings universitet/KonstruktionsmaterialSammanfattning : Thermal barrier coatings (TBCs) are advanced material systems used in the hot sections of gas turbines. The TBCs are designed to provide insulation against hot gases by a ceramic top coat and to provide oxidation and corrosion resistance by a metallic bond coat. LÄS MER
3. Understoppning av bergbultsbricka : En undersökning om möjlig uteslutning av arbetsmomentet
Kandidat-uppsats, KTH/Byggteknik och designSammanfattning : Vid byggnation av tunnlar och bergrum används bergförstärkning för att exempelvis säkra mot nedfallande lösa block och uppsprickning av berg. En vanlig förekommande förstärkning är bergbultar i kombination med sprutbetong. Vid installation av bultar borras hål i bergväggen som sedan fylls med cementbruk. LÄS MER
4. Modelling of Laser Welding of Aluminium using COMSOL Multiphysics
Master-uppsats, KTH/MaterialvetenskapSammanfattning : This thesis presents a modelling approach of laser welding process of aluminium alloy from the thermo-mechanical point of view to evaluate the occurrence of hot cracking based on simulation results and relevant criteria. The model was created stepwise in COMSOL Multiphysics, starting with the thermal model where heat conduction of solid and liquid phase was computed. LÄS MER
5. An Investigation of Bent-Beam Stress-Corrosion Test for Titanium Alloys
Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematikSammanfattning : Titanium alloys are highly resistant to all types of corrosion due to their excellent ability to form an oxide film on the surface. However, under certain circumstances, these alloys may experience an environmental degradation which could potentially, under the application of mechanical stress, lead to a complete failure of the material. LÄS MER