Sökning: "TMF"

Visar resultat 6 - 10 av 12 avhandlingar innehållade ordet TMF.

1. 6. Fatigue of Heavy-Vehicle Engine Materials : Damage Mechanisms, Laboratory Experiments and Life Estimation

   Författare :Viktor Norman; Johan Moverare; Peter Skoglund; Daniel Leidermark; Tilmann Beck; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : Due to increasing demands on sustainability exerted by end-costumers and policy makers, heavyvehicle manufacturers are urged to increase the engine efficiency in order to reduce the exhaust gas emission. However, increasing the efficiency is also associated with an elevated fatigue rate of the materials constituting the engine parts, which consequently reduces the engine service life. LÄS MER

3. 7. Fatigue of Heavy-Vehicle Engine Materials : Experimental Analysis and Life Estimation

   Författare :Viktor Norman; Johan Moverare; Peter Skoglund; Daniel Leidermark; Torsten Sjögren; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : The heavy-vehicle automotive industry is constantly subjected to higher demands. In particular, new European emission standards are formulated with the intention of improving the environmental friendliness of newly-produced vehicles through reduced exhaust emission. LÄS MER

4. 8. Nickel-Based Single-Crystal Superalloys : the crystal orientation influence on high temperature properties

   Författare :Mikael Segersäll; Johan Moverare; Kjell Simonsson; Daniel Leidermark; Roger Reed; Linköpings universitet; []
   Nyckelord :;

   Sammanfattning : Superalloys are a group of materials that are used in high temperature applications, for example gas turbines and aero engines. Gas turbines are most commonly used for power generation, and it is only the very critical components which are exposed to the most severe conditions within the turbine, which are made from superalloy material. LÄS MER

5. 9. Low Cycle Fatigue and Thermo-Mechanical Fatigue of Uncoated and Coated Nickel-Base Superalloys

   Författare :Svjetlana Stekovic; Torsten Ericsson; Hael Mughrabi; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; AMDRY997; CMSX-4; SCB; Thermo-Mechanical Fatigue; Coatings; Gas Turbine; IC1; IC3; IN792; Low Cycle Fatigue; Nickel-Base Superalloys; RT22; Materials science; Teknisk materialvetenskap;

   Sammanfattning : High strength nickel-base superalloys have been used in turbine blades for many years because of their superior performance at high temperatures. In such environments superalloys have limited oxidation and corrosion resistance and to solve this problem, protective coatings are deposited on the surface. LÄS MER

7. 10. Morphological and chemical leaf traits of tropical montane tree species and their responses to warming

   Författare :Manishimwe Aloysie; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; tropical montane forests; tropical trees; leaf morphology; leaf nutrients; warming climate; climate change;

   Sammanfattning : Leaf morphological and chemical traits of tropical trees vary along climate gradients, but it is currently unclear how they will respond to a rapidly warming climate and how this will vary among species. Considering this, tropical trees native to East and Central Africa were investigated in three complementary studies in Rwanda. LÄS MER