Monte Carlo simulation of grain growth. Influence of the initial matrix / Roukia Beldjedra

Public ISBD Titre : Monte Carlo simulation of grain growth. Influence of the initial matrix Type de document : texte imprimé Auteurs : Roukia Beldjedra, Auteur ; A. Ayad, Directeur de thèse Editeur : CONSTANTINE [ALGERIE] : Université Frères Mentouri Constantine Année de publication : 2021 Importance : 65 f. Format : 30 cm. Note générale : Une copie electronique PDF disponible au BUC Langues : Français (fre) Catégories : Sciences Exactes:Physique Tags : Monte Carlo  Simulation  grain growth  EBSD, isotropic  anisotropic  artificial matrix  kinetics  grain size distribution  texture. Index. décimale : 530 Physique Résumé : In this work, we are interested in the Monte Carlo simulation of the influence of anisotropy on the normal growth of grains in an IF steel. We used three matrices to initialize the simulation: experimental obtained by EBSD and two artificial, isotropic and anisotropic, generated by computer. The growth kinetics show values of the growth exponent that are higher than its theoretical value. The microstructural evolution during the simulation shows similar grain size distributions and the self-similarity is preserved during the experimental evolution and in simulation. For the simulation textures evolution, orientations remain near randomly distributed in the orientation space during grain growth for the isotropic matrix, grain growth leads to reinforce homogeneously the orientations inside γ fiber for the anisotropic experimental and artificial matrices. However, the maximum values of the ODF are observed for the {111}<112> and {111}<110> components for these two states, repectively. On the other hand, the experimental evolution leads to the reinforcement of the {111}<110> at the expense of the {111}<112> component in the interior of γ fiber. Introducing reliable hypotheses on the mobility of grain boundaries can bridge the gap between simulation and experience. Diplome : Master 2 Permalink : https://bu.umc.edu.dz/master/index.php?lvl=notice_display&id=15197 Monte Carlo simulation of grain growth. Influence of the initial matrix [texte imprimé] / Roukia Beldjedra, Auteur ; A. Ayad, Directeur de thèse . - CONSTANTINE [ALGERIE] : Université Frères Mentouri Constantine, 2021 . - 65 f. ; 30 cm. Une copie electronique PDF disponible au BUC Langues : Français (fre) Catégories : Sciences Exactes:Physique Tags : Monte Carlo  Simulation  grain growth  EBSD, isotropic  anisotropic  artificial matrix  kinetics  grain size distribution  texture. Index. décimale : 530 Physique Résumé : In this work, we are interested in the Monte Carlo simulation of the influence of anisotropy on the normal growth of grains in an IF steel. We used three matrices to initialize the simulation: experimental obtained by EBSD and two artificial, isotropic and anisotropic, generated by computer. The growth kinetics show values of the growth exponent that are higher than its theoretical value. The microstructural evolution during the simulation shows similar grain size distributions and the self-similarity is preserved during the experimental evolution and in simulation. For the simulation textures evolution, orientations remain near randomly distributed in the orientation space during grain growth for the isotropic matrix, grain growth leads to reinforce homogeneously the orientations inside γ fiber for the anisotropic experimental and artificial matrices. However, the maximum values of the ODF are observed for the {111}<112> and {111}<110> components for these two states, repectively. On the other hand, the experimental evolution leads to the reinforcement of the {111}<110> at the expense of the {111}<112> component in the interior of γ fiber. Introducing reliable hypotheses on the mobility of grain boundaries can bridge the gap between simulation and experience. Diplome : Master 2 Permalink : https://bu.umc.edu.dz/master/index.php?lvl=notice_display&id=15197

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Monte Carlo simulation of grain growth. Influence of the initial matrix / Roukia Beldjedra 

Public ISBD Titre : Monte Carlo simulation of grain growth. Influence of the initial matrix Type de document : texte imprimé Auteurs : Roukia Beldjedra, Auteur ; A. Ayad, Directeur de thèse Année de publication : 2021 Importance : 65 f. Format : 30 cm. Note générale : Une copie electronique PDF disponible au BUC Langues : Anglais (eng) Catégories : Sciences Exactes:Physique Tags : Monte Carlo  Simulation  grain growth  EBSD, isotropic  anisotropic  artificial matrix  kinetics  grain size distribution  texture. Index. décimale : 530 Physique Résumé : In this work, we are interested in the Monte Carlo simulation of the influence of anisotropy on the normal growth of grains in an IF steel. We used three matrices to initialize the simulation: experimental obtained by EBSD and two artificial, isotropic and anisotropic, generated by computer. The growth kinetics show values of the growth exponent that are higher than its theoretical value. The microstructural evolution during the simulation shows similar grain size distributions and the self-similarity is preserved during the experimental evolution and in simulation. For the simulation textures evolution, orientations remain near randomly distributed in the orientation space during grain growth for the isotropic matrix, grain growth leads to reinforce homogeneously the orientations inside γ fiber for the anisotropic experimental and artificial matrices. However, the maximum values of the ODF are observed for the {111}<112> and {111}<110> components for these two states, repectively. On the other hand, the experimental evolution leads to the reinforcement of the {111}<110> at the expense of the {111}<112> component in the interior of γ fiber. Introducing reliable hypotheses on the mobility of grain boundaries can bridge the gap between simulation and experience. Diplome : Master 2 Permalink : https://bu.umc.edu.dz/master/index.php?lvl=notice_display&id=15198 Monte Carlo simulation of grain growth. Influence of the initial matrix [texte imprimé] / Roukia Beldjedra, Auteur ; A. Ayad, Directeur de thèse . - 2021 . - 65 f. ; 30 cm. Une copie electronique PDF disponible au BUC Langues : Anglais (eng) Catégories : Sciences Exactes:Physique Tags : Monte Carlo  Simulation  grain growth  EBSD, isotropic  anisotropic  artificial matrix  kinetics  grain size distribution  texture. Index. décimale : 530 Physique Résumé : In this work, we are interested in the Monte Carlo simulation of the influence of anisotropy on the normal growth of grains in an IF steel. We used three matrices to initialize the simulation: experimental obtained by EBSD and two artificial, isotropic and anisotropic, generated by computer. The growth kinetics show values of the growth exponent that are higher than its theoretical value. The microstructural evolution during the simulation shows similar grain size distributions and the self-similarity is preserved during the experimental evolution and in simulation. For the simulation textures evolution, orientations remain near randomly distributed in the orientation space during grain growth for the isotropic matrix, grain growth leads to reinforce homogeneously the orientations inside γ fiber for the anisotropic experimental and artificial matrices. However, the maximum values of the ODF are observed for the {111}<112> and {111}<110> components for these two states, repectively. On the other hand, the experimental evolution leads to the reinforcement of the {111}<110> at the expense of the {111}<112> component in the interior of γ fiber. Introducing reliable hypotheses on the mobility of grain boundaries can bridge the gap between simulation and experience. Diplome : Master 2 Permalink : https://bu.umc.edu.dz/master/index.php?lvl=notice_display&id=15198

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