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Academic literature on the topic 'Alliages légers Aluminium'
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Journal articles on the topic "Alliages légers Aluminium"
Renaut, Christophe, Éric Leveel, Thierry Chanu, Fabrice Darvey, Sylvain Renouf, and Mélanie Charles. "Orano achève la vitrification des solutions de produits de fission des combustibles UNGG." Revue Générale Nucléaire, no. 5 (September 2020): 50–53. http://dx.doi.org/10.1051/rgn/20205050.
Full textDissertations / Theses on the topic "Alliages légers Aluminium"
Ziani, Abdelouahab. "Caractérisation d'alliages légers Al-Cr-Fe pour applications à haute température élaborés par solidification rapide." Vandoeuvre-les-Nancy, INPL, 1992. http://www.theses.fr/1992INPL035N.
Full textHamasaiid, Anwar. "Transferts thermiques interfaciaux en fonderie en moules métalliques d'alliages légers." Toulouse 3, 2007. http://www.theses.fr/2007TOU30249.
Full textThe present investigation is about the interfacial heat transfer during the solidification of light alloys in Gravity (GDC) and High Pressure (HPDC) Die Casting processes. The study consists of three principle fields, experimental, analytical and modelling. The Experimental activity involves measuring the temperature around the casting-die interface, in the mould and at the surface of the castings and other process parameters during die filling and solidification. For this purpose, suitable experimental methods and sensors have been developed. Particularly a pyrometric measurement method has been adapted to measure the casting surface temperature during its solidification. Hundredths of trials were performed using Al-7Si-0. 3Mg, A-9Si-3Cu and AZ91 D alloys during the two investigated processes. From the temperature measurements, interfacial heat transfer coefficient and heat flux density have been evaluated using an inverse method. The obtained results have been analysed with regards to the various process parameters and to the microstructure of the castings. .
Bensussan, Philippe. "Approches mécaniques globale et locale de l'amorçage et de la propagation de fissures par fluage dans l'alliage léger aluminium-cuivre 2219." Paris 11, 1986. http://www.theses.fr/1986PA112360.
Full textAn experimental and theoretical study of creep crack initiation and growth in 2219 aluminum-copper allow at 150-200°C is presented. The application of “Global Approach” methodologies based on elasto-viscoplastic fracture mechanics concepts has led to the introduction of load parameters such as K, J, C*… in order to establish eventual unique correlations with the times to initiation and the crack growth rates. These approaches are shown to be of very limited practical use since fracture mechanics cannot provide unique correlations in all the stages of creep cracking. “Local Approach” methodologies have thus been extended to creep cracking. These latter methodologies rely on damage models, on the one hand, and ion crack tip stress and strain fields, on the other hand. The application of local approach methodologies is clearly shown to be very promising, although additional tests and finite element simulations must be performed, on round notched specimens for example, in order to determine multiaxial constitutive and damage laws
Boisse, Julien. "Modélisation par champ de phase de la cinétique de précipitation dans les alliages Ni-Al, Al-Sc et Al-Zr-Sc." Phd thesis, Université de Rouen, 2008. http://tel.archives-ouvertes.fr/tel-00649319.
Full textRoyes, Paul Timothée Louis. "Composites aluminium - nanotubes de carbone pour application électrique : élaboration par métallurgie liquide, mise en forme et caractérisation." Thesis, Ecole centrale de Lille, 2015. http://www.theses.fr/2015ECLI0015.
Full textThe lightening of structures, including electrical cables, is a major issue for aviation and rail industries, major consumers of energy resources. The use of carbon nanotubes (CNTs) as reinforcements in the preparation of composite materials with aluminum matrix is a promising solution to achieve improved properties in the material. The preparation by liquid metallurgy of an Al-CNT material with induction furnace processing is facing challenges such as the integration and dispersion of CNTs in liquid aluminum.A scales integration method has been implemented with fiber and carbon fiber nanofibres (NFC). It has allowed to identify that the presence of a copper interface at the surface of reinforcements and mechanical stirring are the key points to promote wetting and dispersion of CNTs. An Al-NFC composite material with improved mechanical properties was developed and the copper contribution provided by the interface could be quantified. NFC contribution to improving the elastic strength relative to the reference aluminum is + 44% with optimized elaboration parameters.The behavior of CNTs with and without copper interface in liquid aluminum has been studied using thermodynamic and kinetic considerations. An analytic model for aluminum carbide growth has been established theoretically and was experimentally calibrated with an integrate-pictures correlated method. The influence of CNTs on the heterogeneous nucleation of aluminum has also been studied and a method to obtain fine equiaxed structure has been determined
Barbeau, Fabrice. "Conception, étude et réalisation de pièces en alliage léger, localement renforcées par insert." Lyon 1, 1999. http://www.theses.fr/1999LYO10268.
Full textContrepois, Quentin. "Texture et Anisotropie du comportement mécanique après laminage à chaud d'un alliage léger Aluminium Cuivre Lithium (2050) pour l'aéronautique." Phd thesis, Ecole Nationale Supérieure des Mines de Saint-Etienne, 2010. http://tel.archives-ouvertes.fr/tel-00481142.
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