Quantitative transmission electron microscopy is used to characterize the microstructure of an industrial Al-Mg-Si-Cu alloy ( AA 6056) in a state (T78 temper) desensitized to intergranular corrosion in comparison with the peak aged state (T6 temper). [Compagnie de Produits Chimiques et Electrometallurgiques Pechiney, Centre de Recherches de Voreppe, 38 (France) T6 and T78 tempers of AA6065 alloy: a quantitative TEM studyĮnergy Technology Data Exchange (ETDEWEB) The base material (T4) and the heat-treated one (T6) were put in comparison showing a remarkable ductility reduction of the joint after T6 treatment After friction stir-welding thermal treatment has been carried out at 530 deg. Metallurgical investigations, hardness and mechanical tests were also performed to correlate the TEM investigations to the mechanical properties of the produced friction stir-welded butt joint. The microstructure evolution of a joint of Al-Si-Mg alloys A 6056-T4 and A 6056-T6 has been characterized by transmission electron microscopy (TEM). International Nuclear Information System (INIS) TEM analysis of a friction stir-welded butt joint of Al-Si-Mg alloys
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