Microstructure Evolution in an Aluminum Cladded Sheet during Vacuum Brazing
Résumé
Microstructure evolution of a 3003 sheet cladded with 4004 brazing alloy is investigated during slow heating (1K/min) under secondary vacuum up to isothermal brazing temperature (590°C). Optical and scanning microscopies, EDS chemical analysis and EBSD orientation mapping are used. Experimental results are discussed in the light of thermodynamic calculations using Thermo-Calc. Comparisons show good agreement as long as Mg vaporization does not take place.
Domaines
Matériaux
Origine : Fichiers produits par l'(les) auteur(s)
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