Добірка наукової літератури з теми "Mécanismes de recristallisation"
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Статті в журналах з теми "Mécanismes de recristallisation"
Chauveau, Th, Ph Gerber, P. Bastie, B. Hamelin, J. Tarasiuk, and B. Bacroix. "Application de la méthode de Laue refocalisée à haute énergie à l'étude des mécanismes de recristallisation après déformation à froid de métaux CFC." Journal de Physique IV (Proceedings) 12, no. 6 (July 2002): 107–14. http://dx.doi.org/10.1051/jp4:20020218.
Повний текст джерелаДисертації з теми "Mécanismes de recristallisation"
Kiaei, Mercedeh. "Etude des mécanismes de recristallisation dans des aciers bas carbone." Paris 13, 1996. http://www.theses.fr/1996PA132018.
Повний текст джерелаJakani, Saâd. "Effet des impuretés sur les mécanismes de recristallisation du cuivre tréfilé." Phd thesis, Université Paris Sud - Paris XI, 2004. http://tel.archives-ouvertes.fr/tel-00220406.
Повний текст джерелаWang, Wei. "Etude des mécanismes de recristallisation de nouveaux alliages à base de Ni." Phd thesis, Université Paris Sud - Paris XI, 2014. http://tel.archives-ouvertes.fr/tel-01024285.
Повний текст джерелаZhu, Kangying. "Etude des mécanismes de déformation et de recristallisation dans un alliage de zirconium." Paris 13, 2006. http://www.theses.fr/2006PA132021.
Повний текст джерелаGourdet, Sophie. "Étude des mécanismes de recristallisation au cours de la déformation a chaud de l'aluminium." Phd thesis, Ecole Nationale Supérieure des Mines de Saint-Etienne, 1997. http://tel.archives-ouvertes.fr/tel-00783855.
Повний текст джерелаGourdet, Sophie. "Étude des mécanismes de recristallisation au cours de la déformation à chaud de l'aluminium." Grenoble INPG, 1997. http://www.theses.fr/1997INPG4206.
Повний текст джерелаKerisit, Christophe. "Analyse des mécanismes de recristallisation statique du tantale déformé à froid pour une modélisation en champ moyen." Phd thesis, Ecole Nationale Supérieure des Mines de Paris, 2012. http://pastel.archives-ouvertes.fr/pastel-00873188.
Повний текст джерелаGerber, Philippe. "Etude des liens entre hétérogénéités de déformation et mécanismes de recristallisation. Application au cuivre et ses alliages." Paris 13, 2002. http://www.theses.fr/2002PA132027.
Повний текст джерелаThe study of the relation between deformed inhomogeneities and static recrystallization is done in copper and -brass in cooper, a critic value of deformation (cold rolling to =90 %) is obtained from the bulk texture analysis. Below this value, the recrystallization texture {100}<001>is obtained. In x-brass, the deformation texture is even more complicated due to the deformation twinning mechanisms, which conducted to a weaker texture. The comparison of the experimental measurements in copper for two levels of reduction ( =70 % and =90 %) is done in order to understand the influence of the deformed state on recrystallization. Stored energy measurements show that minimum difference is needed between the C {112}<111>and/or S {123}<634>and the Cube orientations to produce the Cube texture. For both materials, a recovery of the Cube grains is observed. From EBSD measurements in copper =70 %, intergranular nucleation takes place in highly deformed regions, which conducts to a dispersed texture. In copper =90 %, this nucleation is not the main mechanism. Indeed, after recovery inside Cube/G {011}<100> transition bands, a fast process of nucleation and growth of the Cube orientation is observed. This corresponds to the oriented nucleation and growth hypothesis. In copper, Monte-Carlo simulation is used in order to explain the recrystallization texture after cold rolling to =70%. The experimental recrystallization texture is difficult to obtain, and this can be due to the annealing twinning active nucleation and growth steps
Moreno, Marc. "Mécanismes métallurgiques et leurs interactions au recuit d’aciers ferrito-perlitiques laminés : caractérisation et modélisation." Thesis, Université de Lorraine, 2019. http://www.theses.fr/2019LORR0068.
Повний текст джерелаFerrite/Martensite Dual-Phase steels are largely used in the form of thin sheets in the automotive industry for their excellent balance between resistance and strength and thus for their lightening potential. They are elaborated by continuous casting, hot- and cold- rolling, followed by a continuous annealing. During the heating and the soaking stages of this latter process, the deformed ferrite/pearlite microstructure obtained after rolling evolves is transformed into a recrystallized ferrite-austenite microstructure. The experiments show that recrystallization and austenite transformation kinetics as well as the resulting spatial and morphological distribution of the phases are highly sensitive to the heating rate. This PhD thesis aims at understanding the different metallurgical mechanisms explaining this particular sensitivity as carbides ripening, recovery, recrystallization and austenite transformation and all their possible interactions. The mechanisms were characterized at different scales and by in situ technics on an industrial steel and model by physical based approaches in order to drive future production lines. After a first chapter dedicated to the experimental and modeling methods, the second chapter deals with the characterization of the morphogenesis of ferrite-austenite microstructures by Scanning Electron Microscopy (SEM). Chapter 3 is a study by Transmission Electron Microscopy (TEM) and by thermokinetic modeling (ThermoCalc, DICTRA) of the chemical composition of carbides along with manufacturing, from hot-rolling to annealing. Recovery and recrystallization are studied in chapter 4 by the means of in situ High Energy X-Ray Diffraction (HEXRD) experiments conducted on a synchrotron beamline and modeled by an original mean-field approach. Finally, chapter 5 proposes an analysis with DICTRA to understand austenite transformation kinetics as function of heating rates. The proposed approach is innovative as it accounts for intergranular carbides in the ferrite matrix, is conducted in non-isothermal conditions and propose a fine analysis of growth modes of austenite associated to manganese, a key alloying element of the studied steels
Samet-Meziou, Amel. "Etude des mécanismes de recristallisation dans un acier IF-Ti après faible déformation par laminage ou par traction." Paris 11, 2005. http://www.theses.fr/2005PA112010.
Повний текст джерелаThis work permit to establish a relation between the substructures of deformation of an IF-Ti deformed by rolling (40%) or tensile strain (35%) and the recrystallization mechanisms. With this intention, the substructure of deformation was characterized by transmission electronic microscopy for the three principals components of the deformation texture: the {111}<112> orientation of the fiber and the {111}<110> and {001}<110> orientations of the fiber. Two types of substructures were observed: lamellar bands for the {111}<112> grains and equiaxed cells for the grains of the fiber. This characterization of the deformed state was completed by an estimation of the stored energy using various approaches (neutrons diffraction, EBSD, TEM) and showed the following hierarchy: E{111}<112 > > E{111}<110 > E{001}<110 >. The first stage of annealing is characterized by recovery. This process is assumed by: refinement of the walls of cells, the vanishing of dislocations inside the cells, the coalescence and growth of the cells. The cellular substructure is most favourable to the growth. For the two observed substructures, a sufficient size is necessary to ensure the formation of a viable nucleus. The formation of recrystallized grains is ensured by two mechanisms: generalized recovery mainly observed for the substructure of lamellar bands and the "Bulging" specific to the équiaxes substructures