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Verstraete, K., Helbert, A. L., Brisset, F., Benoit, A., Paillard, P. & Baudin, T. (2015) Microstructure, mechanical properties and texture of an AA6061/AA5754 composite fabricated by cross accumulative roll bonding. Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process. 640 235–242. 
Added by: Richard Baschera (2016-03-10 18:36:41)   Last edited by: Richard Baschera (2016-05-24 14:16:02)
Type de référence: Article
DOI: 10.1016/j.msea.2015.05.106
Numéro d'identification (ISBN etc.): 0921-5093
Clé BibTeX: Verstraete2015
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Catégories: ID2M
Mots-clés: Aluminium alloys, aluminum-alloy, arb process, Cross accumulative roll bonding hot cracking, ebsd, evolution, Mechanical properties, microstructure, plastic-deformation, ultra grain-refinement
Créateurs: Baudin, Benoit, Brisset, Helbert, Paillard, Verstraete
Collection: Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process.
Consultations : 3/493
Indice de consultation : 1%
Indice de popularité : 0.25%
Résumé     
AA6061 alloy is a widely used material in the automotive and aerospace industries, but is prone to hot cracking, which limits its weldability. To prevent this phenomenon, the AA6061/AA5754 composite was formed using a severe plastic deformation technique, Cross Accumulative Roll Bonding (CARB), at an elevated temperature (350 degrees C) to ensure good bonding between layers. This technique was efficient to maintain a small grain size, even under the process temperature conditions, and consequently, preserve good mechanical properties. The composite had better mechanical properties than the initial aluminium alloys. Microstructure and texture remained stable after two cycles and yield stress tended towards an equal value in the rolling and the transverse directions. After two cycles, the main component was the (001)(110) rotated Cube, which was maintained for up to 10 cycles. Diffusion was more effective as the strain increased. Finally, a tungsten inert gas (TIG) welding process was performed on the composite and confirmed resistance to hot cracking. (C) 2015 Elsevier B.V. All rights reserved.
  
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