2. Experimental details
2.1. Base material
The base material used for this research was the 5083-H111
aluminium alloy in 6 mm thick laminated plates. As already mentioned, the 5xxx aluminium alloys are not heat-treatable, being
plastic deformation the main hardening mechanics in this alloy.
The H111 condition was obtained with some work hardening by
shaping processes but less than required for a H11 temper. The
nominal chemical composition and mechanical properties are presented inTables 1 and 2, respectively