Titre :	Caractérisation par électron Back Scattering diffraction(EBSD) de l'évolution des textures de déformation en traction d'un acier doux
Type de document :	texte imprimé
Auteurs :	Abdelhak Ayad, Auteur ; N. Rouag, Directeur de thèse ; Univ. de Constantine, Éditeur scientifique
Année de publication :	2005
Importance :	110 f.
Note générale :	01 Disponible à la salle de recherche 02 Disponibles au magazin de la bibliothèque centrale 01 CD
Langues :	Français (fre)
Catégories :	Français - Anglais Physique
Tags :	Texture  Acier  Déformation plastique  EBSD  Plastic deformation  Low-carbon steel  البنية النسيجية  التشوه اللذن  الفولاذ
Index. décimale :	530 Physique
Résumé :	The present study examines deformation textures in a low-carbon steel. Electron Back-Scattering Diffraction (EBSD) has been used in order to follow the evolution of the texture. EBSD is a local analysis technique performed in a Scanning Electron Microscope. This technique was developed as a result of the progress made in electronic imagery and image analysis. It is useful methode for microstructure progress and characterisation. In this study, the non-deformed material shows a {111}-fibre texture (known as γ-fibre), with one dominant orientation {111}<110>. Generaly a material with this texture has good formability. Its deformation aptitude may thus be related to the evolution of this texture component. To follow the evolution of the deformation textures, tensile tests were performed from 5% up to failure. During deformation, the {111}<110> component sharpens and the value of the texture function F(g) increases from 7.3, for the non-deformed sample, to 9.5, for deformed sample (20%). In the presence of this component in the non-deformed sheet, plastic flow is easier. Using EBSD, we could also show the heterogeneous structure that develops during deformation and induces heterogeneous mechanical behaviour which is not predictable using global characterization techniques.
Diplôme :	Magistère
En ligne :	../theses/physique/AYA4344.pdf
Permalink :	index.php?lvl=notice_display&id=3573

Caractérisation par électron Back Scattering diffraction(EBSD) de l'évolution des textures de déformation en traction d'un acier doux [texte imprimé] / Abdelhak Ayad, Auteur ; N. Rouag, Directeur de thèse ; Univ. de Constantine, Éditeur scientifique . - 2005 . - 110 f.
01 Disponible à la salle de recherche 02 Disponibles au magazin de la bibliothèque centrale 01 CD
Langues : Français (fre)

Catégories :	Français - Anglais Physique
Tags :	Texture  Acier  Déformation plastique  EBSD  Plastic deformation  Low-carbon steel  البنية النسيجية  التشوه اللذن  الفولاذ
Index. décimale :	530 Physique
Résumé :	The present study examines deformation textures in a low-carbon steel. Electron Back-Scattering Diffraction (EBSD) has been used in order to follow the evolution of the texture. EBSD is a local analysis technique performed in a Scanning Electron Microscope. This technique was developed as a result of the progress made in electronic imagery and image analysis. It is useful methode for microstructure progress and characterisation. In this study, the non-deformed material shows a {111}-fibre texture (known as γ-fibre), with one dominant orientation {111}<110>. Generaly a material with this texture has good formability. Its deformation aptitude may thus be related to the evolution of this texture component. To follow the evolution of the deformation textures, tensile tests were performed from 5% up to failure. During deformation, the {111}<110> component sharpens and the value of the texture function F(g) increases from 7.3, for the non-deformed sample, to 9.5, for deformed sample (20%). In the presence of this component in the non-deformed sheet, plastic flow is easier. Using EBSD, we could also show the heterogeneous structure that develops during deformation and induces heterogeneous mechanical behaviour which is not predictable using global characterization techniques.
Diplôme :	Magistère
En ligne :	../theses/physique/AYA4344.pdf
Permalink :	index.php?lvl=notice_display&id=3573