Search for dissertations about: "twist grain boundary phase"

Found 2 swedish dissertations containing the words twist grain boundary phase.

  1. 1. Atomistic modeling of interfaces in WC-Co cemented carbides

    Author : Martin Petisme; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; analytic bond order potentials; weing; WC-Co; grain boundary sliding; grain boundaries; density functional theory; molecular dynamics; interfaces; cemented carbides;

    Abstract : Grain and phase boundaries are crucial in understanding the properties of real materials. In this thesis, interfaces in WC–Co cemented carbide are modeled atomistically using density functional theory (DFT) and analytic interatomic potentials. READ MORE

  2. 2. Micromechanical modeling of cleavage fracture in polycrystalline materials

    University dissertation from Stockholm : KTH

    Author : Mateusz Stec; KTH.; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cleavage fracture; probabilistic modeling; brittle to ductile transition; cohesive zone; visco-plastic material; TECHNOLOGY Engineering mechanics; TEKNIKVETENSKAP Teknisk mekanik; TECHNOLOGY Other technology; TEKNIKVETENSKAP Övriga teknikvetenskaper;

    Abstract : Cleavage fracture in ferritic steels can be defined as a sequence of few critical steps. At first nucleation of a microcrack takes place, often in a hard inclusion. This microcrack then propagates into the surrounding matrix material. The last obstacle before failure is the encounter of grain boundaries. READ MORE