Sökning: "PVD"

Visar resultat 1 - 5 av 34 uppsatser innehållade ordet PVD.

1. 1. Effect of temperature on early stage adhesion during TiAlN sliding against Inconel 718 and Stainless steel 316L : High temperature tribology

   Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Författare :Ahsan Ali; [2023]
   Nyckelord :High temperature tribology; Early-stage adhesion; Adhesive wear; Friction; Wear resistant coatings; Physical vapour deposition PVD coatings; TiAlN; Tungsten carbide WC Co ; Difficult to machine super alloys; Inconel 718; Stainless steel 316L; High-performance materials; Abrasion; Oxidation; Chipping; Ploughing; Characterization;

   Sammanfattning : High-performance materials such as stainless steels and nickel based super alloys are widely used in demanding applications where high mechanical and thermal properties are required. The applications of super alloys are mainly found in jet engines, power plants and gas turbines demanding high fatigue strength, corrosion and oxidation resistance as well as wear resistant properties. LÄS MER

3. 2. Jämförelse av torr bearbetning och minimalsmörjningseffekter på fräsning av austenitiskt rostfritt stål

   M1-uppsats, Högskolan i Gävle/Maskinteknik

   Författare :Adam Norell; Darav Hajo; [2023]
   Nyckelord :MQL; milling; stainless steel; tool wear; MQL; fräsning; rostfritt stål; verktygsförslitning;

   Sammanfattning : Fräsning och annan intermittent skärande bearbetning ger upphov till termisk utmattning av skärverktyg. Problemet med termiska sprickor blir större vid bearbetning av värmehållfasta material som austenitiskt rostfritt stål eftersom värmeväxlingarna i skärverktyget blir mer extrema. LÄS MER

4. 3. Influence of pulsing on PVD TiAlN coating microstructure and mechanical properties : Master thesis project on the impact of deposition parameters on performance and properties of PVD titanium aluminum nitride.

   Master-uppsats, Karlstads universitet

   Författare :Marcus Roseen; [2023]
   Nyckelord :;

   Sammanfattning : This thesis investigates the influence of pulsing on the mechanical properties of PVD TiAlN coatings. The thesis focuses on defects caused by droplets during the arc-evaporation technique by altering the duty time, which affects mechanical properties. LÄS MER

5. 4. SFEER Hydrogen Permeation : Finding a suitable coating for the PA6 liner

   Kandidat-uppsats, Uppsala universitet/Institutionen för materialvetenskap

   Författare :Elsa Friis; Klara Karlsson; Rebecka Damgren; Emma Åkesson; Malin Johansson; [2023]
   Nyckelord :Hydrogen permeation; PA6; coating; hydrogen permeation barrier; polymer hydrogen permeation; permeation; protective coating; hydrogen embrittlement;

   Sammanfattning : Water Stuff & Sun are developing a hydrogen battery based on a technology called SFEER’s. The SFEER’s are spherical high-pressure gas storage containers that are the size of a tennis ball. They consist of a carbon fiber-shell that is lined on the inside with a polymer called PA6. LÄS MER

7. 5. News Consumption and Germ Aversion is Related to Preventive Behaviors Against COVID-19

   Magister-uppsats, Umeå universitet/Institutionen för psykologi

   Författare :Axel Granberg; [2022]
   Nyckelord :COVID-19. Behavioral immune system. Theory of constructed emotions. News consumption. Perceived vulnerability to disease. Preventive behaviors. Vaccination;

   Sammanfattning : The behavioral immune system (BIS) automatically activates certain cognitions, emotions and behaviors in the presence of potentially harmful pathogens. In light of the COVID-19 pandemic it is important to study reactions evoked by the BIS, to see if such reactions are related to a decreased or increased risk of the spread of pathogens, as well as if they are related to some external factors. LÄS MER