Reproduction de : Thèse de doctorat : Sciences économiques, économie des transports : Lyon 2 : 2006. / Titre provenant de l'écran-titre. Bibliogr.

Thèse doctorat : Génie Civil : Villeurbanne, INSA : 2003. / Titre provenant de l'écran-titre. Bibliogr. p. 227-234.

Mémoire IEP : Science politique : Grenoble, IEP : 2006. / Séminaire : "Politique et Environnement" sous la direction de Stéphane La Branche. Titre provenant de la page de titre numérisée. Bibliogr. p. 126-127.

Mémoire diplôme d'ingénieur (PFE) : Aménagement : Tours, EPU-DA : 2009. / Titre provenant de l'écran titre. Bibliogr. p.64-66.

Thèse doctorat : Sciences et Techniques du Déchet : Villeurbanne, INSA : 2006. / Titre provenant de l'écran-titre. Bibliogr. à la fin de chaque chapitre.

Thesis (Ph. D.)--West Virginia University, 2008. / Title from document title page. Document formatted into pages; contains xv, 294 p. : ill. (some col.). Includes abstract. Includes bibliographical references.

Thesis (M.S.)--Air Force Institute of Technology, 2003. / Title from title screen (viewed May 10, 2004). "March 2003." Vita. "AFIT/GAQ/ENS/03-02." "ADA413132"--URL. Includes bibliographical references (leaves 132-135). Also issued in paper format.

This research is concerned with a single crystal nickel-base superalloy which has been developed for application as a high pressure turbine blade material in jet aircraft engines. The microstructures and mechanical properties of superalloys, including the effects of heat-treatments, have been reviewed. The effects of heat-treatments on the γ' precipitate distributions have been investigated. During ageing at 900°C or 800°C, the precipitates adopt an irregular, rounded and highly interconnected microstructure, indicative of precipitate coalescence, whilst at higher ageing temperatures a regular cuboidal precipitate morphology is formed. The kinetics of precipitate coarsening have been investigated, and slight deviations from the power-law predicted by a number of theoretical models were observed. These deviations have been discussed in terms of a progressive transition in the dominant coarsening mechanism. Constant load creep tests were carried out, and although the tensile axis was nominally parallel to [001], the degree and direction of misorientation were found to be critical to the extent of the primary creep strain. Primary creep was shown to proceed by slip on a single (111)[112] system, until the activation of intersecting slip systems brings about the onset of the secondary creep stage. The extent of primary creep has been shown to be reduced by application of a final ageing treatment at 870°C. Precipitate shear by paired dislocations in intense slip bands occurs during high strain-rate deformation at both ambient temperature and at 750°C. Application of a final ageing treatment at 870°C was found to increase the 0.2% proof stress and to bring about the activation of an alternative mode of precipitate shear by dissociated dislocations. The 870°C ageing treatment was shown to cause slight chemical changes at the γ/γ' interfaces, and these are believed to have caused the observed changes in mechanical properties.

Thèse--Droit--Paris, 1973. / En appendice, choix de textes législatifs. Bibliogr. p. 283-287. Index.

Thèse--Lettres, Caen--1977. / Bibliogr. p. 545-559. Index.