Sökning: "Gleeble"

Visar resultat 11 - 15 av 16 avhandlingar innehållade ordet Gleeble.

1. 11. History Reduction Techniques for Simulation of Additive Manufacturing and Physically based Material Modeling

   Författare :Andreas Malmelöv; Andreas Lundbäck; Bijish Babu; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Solid Mechanics; Hållfasthetslära;

   Sammanfattning : In this thesis, finite element (FE) simulations of additive manufacturing (AM) and physically based material modeling are presented. AM is a process where the component is built layer-wise. LÄS MER

3. 12. On the Machinability of High Performance Tool Steels

   Författare :Natalia Sandberg; Sture Hogmark; Jens Bergström; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hot work tool steels; alloying composition; machinability; Materialvetenskap; Materials Science;

   Sammanfattning : The continuous development of hot forming tool steels has resulted in steels with improved mechanical properties. A change in alloying composition, primarily a decreased silicon content, makes them tougher and more wear resistant at elevated temperatures. However, it is at the expense of their machinability. LÄS MER

4. 13. Modeling the microstructural evolution during hot working of C-Mn and of Nb microalloyed steels using a physically based model

   Författare :Linda Lissel; []
   Nyckelord :austenite; modeling; hot deformation; microstructure; evolution; static recrystallization; dynamic recrystallization; metadynamic recrystallization; Modellering av mikrostrukturutvecklingen hos mikrolegerade stål under varmdeformation;

   Sammanfattning : Recrystallization kinetics, during and after hot deformation, has been investigated for decades. From these investigations several equations have been derived for describing it. The equations are often empirical or semi-empirical, i.e. LÄS MER

5. 14. Effect of boron and hydrogen on microstructure and mechanical properties of cast Ti-6Al-4V

   Författare :Raghuveer Gaddam; Magnus Hörnqvist; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Titanium alloy; Metallography; Fractography; Castings; Low cycle fatigue; Hydrogen; Boron; Materialteknik; Engineering Materials;

   Sammanfattning : Titanium and its alloys are widely used in applications ranging from aeroengines and offshore equipment to biomedical implants and sporting goods, owing to their high ratio of strength to density, excellent corrosion resistance, and biomedical compatibility. Among the titanium alloys used in aerospace, Ti-6Al-4V (an α+β alloy) is the most widely used, in applications in which the temperature may reach 350°C, at which point it retains good fatigue and fracture properties as well as moderate tensile strength and ductility. LÄS MER

7. 15. Modeling the microstructural evolution during hot working of C-Mn and Nb microalloyed steels using a physically based model

   Författare :Linda Lissel; Stefan Jonsson; Bertil Ahlblom; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; austenite; modeling; hot deformation; microstructure evolution; static recrystallization; dynamic recrystallization; metadynamic recrystallization; Other materials science; Övrig teknisk materialvetenskap;

   Sammanfattning : Recrystallization kinetics, during and after hot deformation, has been investigated for decades. From these investigations several equations have been derived for describing it. The equations are often empirical or semi-empirical, i.e. LÄS MER