Sökning: "planar faults"

Visar resultat 1 - 5 av 15 avhandlingar innehållade orden planar faults.

  1. 1. First-principles description of planar faults in metals and alloys

    Författare :Wei Li; Vitos Levente; Göran Wahnström; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Phase interface and stacking fault are two common planar defects in metallic materials. In the present thesis, the interfacial energy and the generalized stacking fault energy of random alloys are investigated using density functional theory formulated within the exact muffin-tin orbitals (EMTO) method in combination with the coherent-potential approximation (CPA). LÄS MER

  3. 2. Atom probe microanalysis of a cermet for cutting tool applications

    Författare :Per Lindahl; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; planar faults; N ; Ti C; Ti C; sintering; W; rim; diffusion; binder phase; N ; core; microchemistry;

    Sammanfattning : .... LÄS MER

  4. 3. First-principles investigations of planar defects

    Författare :Song Lu; Levente Vitos; Graeme Ackland; KTH; []
    Nyckelord :;

    Sammanfattning : Two types of planar defects, phase interface and stacking fault, are addressed in thisthesis. The first-principles exact-muffin orbitals method in combination with thecoherent-potential approximation is the main density functional theory (DFT) toolfor our studies. LÄS MER

  5. 4. First-principles investigations of planar defects

    Författare :Lu Song; Levente Vitos; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Two types of planar defects, phase interface and stacking fault, are addressed in this thesis. The investigation is mainly carried out for stainless steels which are fundamental materials in modern society. For the phase interface, we investigate the metallic bcc/bcc and fcc/bcc phase interfaces. LÄS MER

  7. 5. Numerical methods for wave propagation in solids containing faults and fluid-filled fractures

    Författare :Ossian O'Reilly; Jan Nordström; Per Lötstedt; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis develops numerical methods for the simulation of wave propagation in solids containing faults and fluid-filled fractures. These techniques have applications in earthquake hazard analysis, seismic imaging of reservoirs, and volcano seismology. A central component of this work is the coupling of mechanical systems. LÄS MER