Avancerad sökning

Visar resultat 1 - 5 av 26 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Low Temperature Austenite Decomposition in Carbon Steels

    Författare :Albin Stormvinter; Annika Borgenstam; John Ågren; Peter Hedström; John G. Speer; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Carbon steels; Electron backscattered diffraction; Martensite; Microscopy; Microstructure; Thermodynamic modeling;

    Sammanfattning : Martensitic steels have become very important engineering materials in modern society. Crucial parts of everyday products are made of martensitic steels, from surgical needles and razor blades to car components and large-scale excavators. LÄS MER

  3. 2. Simulation of diffusional processes in alloys : techniques and applications

    Författare :Henrik Strandlund; John Ågren; John Morral; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Diffusion; Kirkendall effect; Phase transformations; Random walk; Solute drag; Interfacial mobility; Other materials science; Övrig teknisk materialvetenskap;

    Sammanfattning : This thesis concerns computer simulation of diffusional processes in alloys. The main focus is on the development of simulation techniques for diffusion in single-phase domains, but also diffusion controlled phase-transformations and interfacial processes are discussed. LÄS MER

  4. 3. Étude sur quelques liaisons facultatives dans le français de conversation radiophonique : fréquences et facteurs

    Författare :John Ågren; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Romance languages; Romanska språk;

    Sammanfattning : .... LÄS MER

  5. 4. Maktens tal och talets makt : Kunglig maktlegitimering i Erik XIV:s och Johan III:s tid

    Författare :John Edman Ansell; Henrik Ågren; Louise Berglund; Henrika Tandefeldt; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; History; Sweden; 16th Century; Political History; Rhetoric; Legitimacy; Catherine Jagellonica; Eric XIV; John III; Gustav Vasa; Sigismund III of Poland; Charles IX; Historia; History;

    Sammanfattning : This thesis examines how Erik XIV and Johan III of Sweden used ethos construction and rhetoric to legitimize the new strong royal power during their combined reign from 1561 to 1592. The study analyses three different crises of legitimacy to understand how the kings and their allies negotiated these challenges and how the various strategies used by the rulers affected their ability to expand the space of legitimate royal power. LÄS MER

  7. 5. Phase-field modeling of surface-energy driven processes

    Författare :Klara Asp Grönhagen; John Ågren; Suzana Fries; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Phase-field method; surface energy; solute drag; solid-state sintering; multicomponent multiphase flow; wetting; liquid-phase sintering; spinodal decomposition; CALPHAD; Materials science; Teknisk materialvetenskap;

    Sammanfattning : Surface energy plays a major role in many phenomena that are important in technological and industrial processes, for example in wetting, grain growth and sintering. In this thesis, such surface-energy driven processes are studied by means of the phase-field method. LÄS MER