Browsing by Subject "Dislocacions en cristalls"
Now showing items 1-9 of 9
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Analysis of the micro and substructural evolution during severe plastic deformation of ARMCO iron and consequences in mechanical properties
(2019-01-07)
Article
Restricted access - publisher's policyARMCO iron processed by ECAP up to a maximum equivalent strain of sixteen ECAP passes following route Bc was investigated by Electron Back Scattering Diffraction (EBSD), Transmission Electron Microscopy (TEM), TEM-EBSD and ... -
Atomic displacements accompanying deformation twinning: shears and shuffles
(Taylor & Francis Ltd., 2016-04)
Article
Open AccessDeformation twins grow by the motion of disconnections along their interfaces, thereby coupling shear with migration. Atomic-scale simulations of this mechanism have advanced to the point where the trajectory of each atom ... -
Classical and quantum simulations of dislocations in crystals
(Universitat Politècnica de Catalunya, 2016-10-17)
Bachelor thesis
Open Access
Covenantee: University of New South Wales -
Edge dislocations as sinks for sub-nanometric radiation induced defects in a-iron
(Elsevier, 2018-01)
Article
Open AccessThe role of edge dislocations as sinks for small radiation induced defects in bcc-Fe is investigated by means of atomistic computer simulation. In this work we investigate by Molecular Statics (T = 0K) the interaction ... -
Estudi micromecànic de recobriments metàl·lics prims sotmesos a variacions tèrmiques; simulacions per elements finits utilitzant un model de plasticitat cristal·lina
(Universitat Politècnica de Catalunya, 2008-02)
Master thesis (pre-Bologna period)
Open AccessEl present projecte mostra un estudi de tensions, corbatures i densitat de dislocacions en les deposicions de capes fines de coure monocristal·lí sobre silici. Aquestes alteracions es produeixen durant la seva fabricació ... -
Evolution of matrix-twin interfaces of (101¯2) twin in magnesium
(2015-10-01)
Article
Restricted access - publisher's policyRecently, the presence of basal-prismatic interfaces in hexagonal close packed metals became subject of intensive investigation. We model the {101¯2} twin in magnesium bounded by two types of boundaries, i.e. {101¯2} ... -
Microstructural and mechanical study in the plastic zone of ARMCO iron processed by ECAP
(2017-06-14)
Article
Open AccessPlastic deformation of ARMCO iron processed by ECAP up to a maximum equivalent strain of sixteen (i.e., 1, 4, 8, and 16 ECAP passes) following route Bc was investigated by analyzing its microstructure and the stress-strain ... -
Simulació a escala atòmica de defectes en metalls i aliatges
(Universitat Politècnica de Catalunya. Escola Tècnica Superior d'Enginyers de Camins Canals i Ports de Barcelona, 2011-11-16)
Conference lecture
Open AccessLes propietats físiques dels materials amb estructura atòmica ordenada estan directament relacionades amb la estructura cristal·lina dels àtoms que els formen i, per tant, es veuen fortament modificades pels defectes ... -
Statistics of dislocation avalanches in FCC and BCC metals: dislocation mechanisms and mean swept distances across microsample sizes and temperatures
(Nature, 2020-12-01)
Article
Open AccessPlastic deformation in crystalline materials consists of an ensemble of collective dislocation glide processes, which lead to strain burst emissions in micro-scale samples. To unravel the combined role of crystalline ...
